Owners have filed 235 complaints
about the 2006 Mercedes Benz ML350 with NHTSA between 2005 and 2025.
The largest single group is the engine & cooling.
Across this model's run it ranks 1 of 7 worst.
The letter says how bad. This says what kind — whether this year drew
an unusual number of complaints, unusually dangerous
ones, or failures that arrived unusually early.
The dashed ring is 50 — the national norm. Further out is worse.
Complaint volume — 100
Against the median year of the Mercedes Benz ML350. 50 means typical for this
model; 100 means roughly double.
Severity — 100
25.5% of these complaints
involved a crash, fire, injury or death, against a national rate of
9.7%.
Early failure — 27
16% of failures with a mileage on record happened under
36,000 miles, against a national rate of
29%.
How 2006 compares with every other Mercedes Benz ML350
NHTSA files every complaint against a named sub-assembly, not just a
system. This is the difference between knowing it was "the engine" and
knowing which part of it — the list to hand a mechanic.
Automatic Transmission
942.9%
Engine
419.0%
Differential Unit
29.5%
Hydraulic Power Assist System
29.5%
Automatic Emergency Braking
14.8%
Pressure Monitoring AND Regulating Systems
14.8%
Instrument Cluster/Panel
14.8%
Fuel Gauge System
14.8%
When it fails
Odometer readings owners gave when they filed. About half of all
complaints include one.
Under 1,000 miles
84.4%
1,000 – 9,999 miles
73.8%
10,000 – 24,999 miles
94.9%
25,000 – 49,999 miles
2413.2%
50,000 – 74,999 miles
4926.9%
75,000 – 99,999 miles
4424.2%
100,000 – 149,999 miles
3117.0%
150,000+ miles
105.5%
When owners complained
A spike years after the car went on sale usually means a part wearing
out on schedule across the whole fleet — the kind of pattern no single
owner can see from inside their own car.
Dec 2005peak 8May 2025
Recalls on the 2006 Mercedes Benz ML350
A complaint is one owner's allegation. A recall is the point at which
the manufacturer or a regulator agreed the defect is real and dangerous
enough to fix for free — however old the car is.
United States — NHTSA
24V298000
SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2006-2012 ML, GL, and R-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. Moisture may accumulate and cause corrosion in the brake booster housing unit, which can result in reduced brake performance or brake failure.
Risk: Reduced brake performance or brake failure can increase the risk of a crash.
22V315000
SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2006-2012 ML-Class, GL-Class, and R-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. Moisture may accumulate and cause corrosion in the brake booster housing unit, which can result in reduced brake performance or brake failure.
Risk: Reduced brake performance or brake failure can increase the risk of a crash.
Reports where the owner recorded a crash, a fire, an injury or a death.
Montgomery, ALCrash
UNKNOWN OR OTHER
Brake delay. Caused an at-fault traffic accident on Saturday, April 16, 2022.
NHTSA complaint #11472527 — an unverified report by a vehicle owner.
Montgomery, ALCrash
STRUCTURE:BODY
Brake delay. Caused an at-fault traffic accident on Saturday, April 16, 2022.
NHTSA complaint #11472527 — an unverified report by a vehicle owner.
Montgomery, ALCrash
SERVICE BRAKES
Brake delay. Caused an at-fault traffic accident on Saturday, April 16, 2022.
NHTSA complaint #11472527 — an unverified report by a vehicle owner.
Everett, WACrash
SERVICE BRAKES
While trying to slow in to a corner, the brakes did not work, pushing harder on the brakes caused pulling and vibration. The vehicle left the road causing damage to right fender, bumper, wheel, tire and door. The vehicle has been inspected, brake pads and brakes seemed fine. This continues to happen on a rare occasion, maybe once every 30 times vehicle is driven. This is very scarry to have brake failure, so the vehicle is rarely driven now because no remedy has been offered.
NHTSA complaint #11465027 — an unverified report by a vehicle owner.
at 102,000 milesArcadia, CACrash
AIR BAGS
I WAS DRIVING IN MY CAR TO WORK ON THE CITY STREET (SANTA ANITA AVE GOING NORTH IN THE CITY OF ARCADIA CA), WITHIN FEW MINUTES AFTER I LEFT THE HOUSE I FELT MY HANDS GET HOT PROBABLY THE AIR BAG DEPLOYED AND THE NEXT THING I KNOW MY CAR RAN OVER THE CENTER DIVIDER AND FLIPPED OVER. FORTUNATELY, I CAME OUT OF THE CAR DAZED AND WITH MULTIPLE BRUISES.
NHTSA complaint #11327806 — an unverified report by a vehicle owner.
at 102,000 milesArcadia, CACrash
STEERING
I WAS DRIVING IN MY CAR TO WORK ON THE CITY STREET (SANTA ANITA AVE GOING NORTH IN THE CITY OF ARCADIA CA), WITHIN FEW MINUTES AFTER I LEFT THE HOUSE I FELT MY HANDS GET HOT PROBABLY THE AIR BAG DEPLOYED AND THE NEXT THING I KNOW MY CAR RAN OVER THE CENTER DIVIDER AND FLIPPED OVER. FORTUNATELY, I CAME OUT OF THE CAR DAZED AND WITH MULTIPLE BRUISES.
NHTSA complaint #11327806 — an unverified report by a vehicle owner.
The most recent complaints
In the owners' own words, exactly as filed with NHTSA.
Port Arthur, TX
AIR BAGS
After starting the car, two messages appeared on the dash board. Center Gauge read: SRS Restraint System Malfunction Service Required Fuel Gauge read: SRS (in red) Took the car to our certified mechanic. After his diagnostic check- He said it was the Air Bag Module is out. Needs to be replaced at Mercedes Dealership.
NHTSA complaint #11661071 — an unverified report by a vehicle owner.
Port Arthur, TX
ELECTRICAL SYSTEM
After starting the car, two messages appeared on the dash board. Center Gauge read: SRS Restraint System Malfunction Service Required Fuel Gauge read: SRS (in red) Took the car to our certified mechanic. After his diagnostic check- He said it was the Air Bag Module is out. Needs to be replaced at Mercedes Dealership.
NHTSA complaint #11661071 — an unverified report by a vehicle owner.
at 163,450 milesStamford, CT
SERVICE BRAKES, HYDRAULIC
The contact owns a 2006 Mercedes-Benz ML350. The contact received notification of NHTSA Campaign Number: 24V298000 (Service Brakes, Hydraulic) and the vehicle was taken to the dealer for the recall repair. The contact stated that upon starting the vehicle a week later, the brake warning light and the check engine warning light were illuminated, and the message "Take to Service Center" was displayed. The vehicle was taken back to the dealer, but no assistance was provided. The contact stated while driving at various speeds and depressing the brake pedal, the brakes made an abnormal rubbing and squeaking sound, and the vehicle jerked. The vehicle was taken back to the dealer for the failure to be corrected under the recall, but no assistance was provided. The contact stated that the recall repair failed to correct the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 163,450.
NHTSA complaint #11641387 — an unverified report by a vehicle owner.
at 163,450 milesStamford, CT
ENGINE
The contact owns a 2006 Mercedes-Benz ML350. The contact received notification of NHTSA Campaign Number: 24V298000 (Service Brakes, Hydraulic) and the vehicle was taken to the dealer for the recall repair. The contact stated that upon starting the vehicle a week later, the brake warning light and the check engine warning light were illuminated, and the message "Take to Service Center" was displayed. The vehicle was taken back to the dealer, but no assistance was provided. The contact stated while driving at various speeds and depressing the brake pedal, the brakes made an abnormal rubbing and squeaking sound, and the vehicle jerked. The vehicle was taken back to the dealer for the failure to be corrected under the recall, but no assistance was provided. The contact stated that the recall repair failed to correct the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 163,450.
NHTSA complaint #11641387 — an unverified report by a vehicle owner.
Atlanta, GA
POWER TRAIN
My car was included in the balance right shaft recall as 2nd owner I was just made aware as a result my check engine light came on. It was also learned that the car was included in faulty “balance shaft”. I should be included because my car has same diagnosis as defective equipment
NHTSA complaint #11564459 — an unverified report by a vehicle owner.
Louisville, KY
STEERING
The fuel system faild had it replaced twice gss leaking as well as the power steering leaking badly went out while driving I had both replaced power steering is out again several months later car been sitting since then i looked up to see if there were any safty recalls I did find both on Kelly blue book and a few other sites I contacted dealership was told I could bring vehicle the the recalls don't expire once the vehicle was there received a phone call they had my vehicle however the said they didn't know what kind it was or why it was there I asked how could u not know that was told they had keys but haven't went out to look I gave all my information before the vehicle was picked up I told them the issue again I was told then that as long as it's a recall problem no charge two days later I received another call same thing not knowing what type of vehicle I explained the situation again this time I was told they see 7 recalls all expired but 1 on the break system and I will have to pay $198 plus tax $233 for diagnostic ran and that price doesn't count towards repairs I waited a few hours called in act like someone else and was told recalls don't expire when I explained what was going on and who I was they told me my recalls closed and can't reopen and the was told they didn't see anything about power steering recalls however it was before I had my car towed if this was a safety recall hiw can I tell what information is correct with old recalls and how do I get them to fix this I do have a older model that I purchased 3 years ago from what I can see on there website when putting in Vin only show current recalls and shows my vehicle not having any recalls work ever done this information was on mercedes of louisville website I feel like I'm getting the run around please help with this safety recall I have small kids and won't to be safety
NHTSA complaint #11552779 — an unverified report by a vehicle owner.
Louisville, KY
FUEL/PROPULSION SYSTEM
The fuel system faild had it replaced twice gss leaking as well as the power steering leaking badly went out while driving I had both replaced power steering is out again several months later car been sitting since then i looked up to see if there were any safty recalls I did find both on Kelly blue book and a few other sites I contacted dealership was told I could bring vehicle the the recalls don't expire once the vehicle was there received a phone call they had my vehicle however the said they didn't know what kind it was or why it was there I asked how could u not know that was told they had keys but haven't went out to look I gave all my information before the vehicle was picked up I told them the issue again I was told then that as long as it's a recall problem no charge two days later I received another call same thing not knowing what type of vehicle I explained the situation again this time I was told they see 7 recalls all expired but 1 on the break system and I will have to pay $198 plus tax $233 for diagnostic ran and that price doesn't count towards repairs I waited a few hours called in act like someone else and was told recalls don't expire when I explained what was going on and who I was they told me my recalls closed and can't reopen and the was told they didn't see anything about power steering recalls however it was before I had my car towed if this was a safety recall hiw can I tell what information is correct with old recalls and how do I get them to fix this I do have a older model that I purchased 3 years ago from what I can see on there website when putting in Vin only show current recalls and shows my vehicle not having any recalls work ever done this information was on mercedes of louisville website I feel like I'm getting the run around please help with this safety recall I have small kids and won't to be safety
NHTSA complaint #11552779 — an unverified report by a vehicle owner.
Ridgeway, VA
POWER TRAIN
i encountered a major issue with the Mercedes ML350, while doing a 3 point turn in a busy suburban Toronto street.The electronic shift module left me stuck in Road way. Causing traffic back up and could not move vehicle.neither forward or reverse.tried pushing and different tactics to move vehicle off road. Had to call CAA-AAA. It was a caos situation,first tow truck could not load vehicle,all wheels were locked in drive and would not shift. Had to wait for special tow Have all four wheels lifted off onto dolly. Tow truck driver said it is a common problem.with MB,BMW and Audi.Vehicles towed to dealer sat at dealer. parts on back order and Not available for repair.Since was in Toronto away from Home. Had to source original equipment supplier to purchase part.Dealer and factory Mercedes could Not source part.back ordered.The dealer agreed to install the factory OEM part they could not source. My concern to all owners including myself in line traffic a basic traffic maneuver stuck in blocking traffic. Cannot moving vehicle jammed in gear that controlled by a shift module.no safe limp mode or emergency shift to neutral to move vehicle safely.
NHTSA complaint #11545931 — an unverified report by a vehicle owner.
Ridgeway, VA
ELECTRICAL SYSTEM
i encountered a major issue with the Mercedes ML350, while doing a 3 point turn in a busy suburban Toronto street.The electronic shift module left me stuck in Road way. Causing traffic back up and could not move vehicle.neither forward or reverse.tried pushing and different tactics to move vehicle off road. Had to call CAA-AAA. It was a caos situation,first tow truck could not load vehicle,all wheels were locked in drive and would not shift. Had to wait for special tow Have all four wheels lifted off onto dolly. Tow truck driver said it is a common problem.with MB,BMW and Audi.Vehicles towed to dealer sat at dealer. parts on back order and Not available for repair.Since was in Toronto away from Home. Had to source original equipment supplier to purchase part.Dealer and factory Mercedes could Not source part.back ordered.The dealer agreed to install the factory OEM part they could not source. My concern to all owners including myself in line traffic a basic traffic maneuver stuck in blocking traffic. Cannot moving vehicle jammed in gear that controlled by a shift module.no safe limp mode or emergency shift to neutral to move vehicle safely.
NHTSA complaint #11545931 — an unverified report by a vehicle owner.
Columbus, IN
EXTERIOR LIGHTING
Driver Side Low beam headlight turns off and on randomly whether the vehicle is off or on. I lose view of the road because lights turn off randomly and others cannot see me at night as well. I've tried taking my vehicle to the shop, but no one can trace down this problem. No warning was shown until recently.
NHTSA complaint #11533107 — an unverified report by a vehicle owner.
Columbus, IN
ELECTRICAL SYSTEM
Driver Side Low beam headlight turns off and on randomly whether the vehicle is off or on. I lose view of the road because lights turn off randomly and others cannot see me at night as well. I've tried taking my vehicle to the shop, but no one can trace down this problem. No warning was shown until recently.
NHTSA complaint #11533107 — an unverified report by a vehicle owner.
Midland, TX
ENGINE
THEY HAVE TIMING CHAIN ISSUES . THE BALANCE SHAFTS ABD TIMING CHSIN SPROCKETS FAIL AND CAUSE CATASTROPHIC FAILURE . THIS IS MY 3RD ML350 TO HAVE THE ENGINE GO OUT BECAUSE OF SOMETHING THE MANUFACTURER COULDBE PREVENTED IF IT WAS RECALLED YEARS AGO IF YOU DONT BELIEVE THEN RESEARCH IT THANK YOU
NHTSA complaint #11531009 — an unverified report by a vehicle owner.
Manila, AR
POWER TRAIN
Brakes feel spongy,, when letting off accelerate feels as if transmission has a brake applied
NHTSA complaint #11524733 — an unverified report by a vehicle owner.
Manila, AR
SERVICE BRAKES
Brakes feel spongy,, when letting off accelerate feels as if transmission has a brake applied
NHTSA complaint #11524733 — an unverified report by a vehicle owner.
at 151,831 milesJacksonville, FL
SERVICE BRAKES, HYDRAULIC
The contact owns a 2006 Mercedes-Benz ML350. The contact received notification of NHTSA Campaign Number: 22V315000 (Service Brakes, Hydraulic) however, the recall repair was not performed by the dealer. The contact stated that while driving at an undisclosed speed, the vehicle intermittently experienced phantom braking with the ABS warning light illuminated. Additionally, the brake pedal went to the floorboard while depressed and made an abnormal sound; however, the brakes failed to stop the vehicle immediately. The vehicle was taken to an independent mechanic who diagnosed that the ABS sensor was faulty. The vehicle was then towed to the dealer, where it was diagnosed that the ABS sensor needed to be reset. The dealer reset the ABS sensor and informed the contact that the brake system housing was corroded and needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 151,831.
NHTSA complaint #11484390 — an unverified report by a vehicle owner.
The contact owns a 2006 Mercedes-Benz ML350. The contact received notification of NHTSA Campaign Number: 22V315000 (Service Brakes, Hydraulic) however, the recall repair was not performed by the dealer. The contact stated that while driving at an undisclosed speed, the vehicle intermittently experienced phantom braking with the ABS warning light illuminated. Additionally, the brake pedal went to the floorboard while depressed and made an abnormal sound; however, the brakes failed to stop the vehicle immediately. The vehicle was taken to an independent mechanic who diagnosed that the ABS sensor was faulty. The vehicle was then towed to the dealer, where it was diagnosed that the ABS sensor needed to be reset. The dealer reset the ABS sensor and informed the contact that the brake system housing was corroded and needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 151,831.
NHTSA complaint #11484390 — an unverified report by a vehicle owner.
Colleyville, TX
SERVICE BRAKES, HYDRAULIC
The contact owns a 2006 Mercedes-Benz ML350. The contact received notification of NHTSA Campaign Number: 22V315000 (Service Brakes, Hydraulic). The manufacturer was made aware of the issue and referred the contact to the dealer for assistance. The contact was given an appointment by the dealer weeks in advance and was notified in the recall notice to stop driving the vehicle immediately. The manufacturer assured the contact on multiple occasions that the dealer would provide an alternative form of transportation until the recall was serviced; however, the dealer failed to provide the contact another form of transportation. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact had not experienced a failure. Parts distribution disconnect.
NHTSA complaint #11475279 — an unverified report by a vehicle owner.
Corona, CA
ENGINE
Balance shaft failure
NHTSA complaint #11474203 — an unverified report by a vehicle owner.
Montgomery, ALCrash
UNKNOWN OR OTHER
Brake delay. Caused an at-fault traffic accident on Saturday, April 16, 2022.
NHTSA complaint #11472527 — an unverified report by a vehicle owner.
Montgomery, ALCrash
STRUCTURE:BODY
Brake delay. Caused an at-fault traffic accident on Saturday, April 16, 2022.
NHTSA complaint #11472527 — an unverified report by a vehicle owner.
Montgomery, ALCrash
SERVICE BRAKES
Brake delay. Caused an at-fault traffic accident on Saturday, April 16, 2022.
NHTSA complaint #11472527 — an unverified report by a vehicle owner.
Alton, IL
SERVICE BRAKES
Hello, There is a safety recall from the manufacturer and they have advised not to drive the vehicle. The vehicle does take a little more press on the breaks for it to function so we are assuming that we are affected by this recall. I have writen emails and called the Mercedez hotline on June 1st 2022 and they assured me over the phone that the dealership will be able to help. When i called the dealerships in St Louis, namely Plaza motors and St Louis Mercedez they declined to inspect the vehicle and advised that i can keep driving untill they inspect the vehicle. The recall from mercedez clearly states that the vehicle should not be driven. When i told them about it they changed the story and told me they dont know when they can do the inspection. Upon calling Mercedes back, they told me that they are sorry about the misinformation ad that I can rent a vehicle for reembursement but when asked about the process of getting the money back, they could not provide an answer. We did not feel comfortable renting a vehicle before knowing the process in detail so we called Mercedes back and the next person told me that the rentals will not be reimbursed. We are really in a tough situation as the car is not safe to drive per the recall and neither Mercedes or the local dealers are willing to help even after a month of the recall notice. We are hoping that either they can inspect the vehicle, give us a loaner vehicle or reimburse us for a rental vehicle. We have a small family with a 3 year old and want to make sure that we are all safe. Thank you
NHTSA complaint #11468905 — an unverified report by a vehicle owner.
Broken Arrow, OK
ENGINE
car suddenly stalled out while driving in traffic and was told that the engine went out, was very dangerous and also seen on the website that 100s of other owners with the same problem and mercedes has not done anything about the problem.
NHTSA complaint #11468358 — an unverified report by a vehicle owner.
Surprise, AZ
UNKNOWN OR OTHER
Since my significant others and I purchased this 2006 Mercedes Benz SUV - ML-350, over three months ago, we were wondering why the "Engine check light was always on" so we purchased (4) sensors and replaced the sensors of where OBD tests pointed out for the engine, deleted the Engine Check Light several times but it will go back on after we driven it for another 50 to 100 miles away to normal highways and freeways driving to relearn the computer system and the Check Engine Light On again and again but not blinking? We called our friendly mechanics and he said it maybe faults recalled that part of the electronics or maybe the computer is giving that "engine check" light on because it has some safety components is malfunctioning, the braking is also hard and sometimes it is too soft when I push it with my right foot to stop the car and also the car is using too much gas. So, we kept postponement of bringing this car to the dealership for repairs because we cannot afford the repairs. Then today, I check to my email and I see the Recall email from NHTSA about MB - ML-350 / recall number 2022050015 / NHTSA # 22V315, since we cannot smog check it because of the "Engine Check On" it is always on we were puzzled why this light and this car cost too much to use and sometimes hard and sometimes soft to push on it's braking power? Please let us know on what to do next? Shall we call the MB-Dealerships to tow this car to their shop because we have stop using this car about over (3) months ago since we bought it ? Braking System is sometimes is too hard and sometimes too soft and using too much gas and the "Engine Check is always On " even we have replaced the (4) electronic sensors that the OBD machine pointed out but is still doing the same thing. Please advise us of what to do to resolve these operational safety of our 2006 - ML-350 Mercedes Benz, it is stored in our car garage. The rear reverse camera also stops working and it is saying braking lights are not functioning?
NHTSA complaint #11467959 — an unverified report by a vehicle owner.
Surprise, AZ
ELECTRICAL SYSTEM
Since my significant others and I purchased this 2006 Mercedes Benz SUV - ML-350, over three months ago, we were wondering why the "Engine check light was always on" so we purchased (4) sensors and replaced the sensors of where OBD tests pointed out for the engine, deleted the Engine Check Light several times but it will go back on after we driven it for another 50 to 100 miles away to normal highways and freeways driving to relearn the computer system and the Check Engine Light On again and again but not blinking? We called our friendly mechanics and he said it maybe faults recalled that part of the electronics or maybe the computer is giving that "engine check" light on because it has some safety components is malfunctioning, the braking is also hard and sometimes it is too soft when I push it with my right foot to stop the car and also the car is using too much gas. So, we kept postponement of bringing this car to the dealership for repairs because we cannot afford the repairs. Then today, I check to my email and I see the Recall email from NHTSA about MB - ML-350 / recall number 2022050015 / NHTSA # 22V315, since we cannot smog check it because of the "Engine Check On" it is always on we were puzzled why this light and this car cost too much to use and sometimes hard and sometimes soft to push on it's braking power? Please let us know on what to do next? Shall we call the MB-Dealerships to tow this car to their shop because we have stop using this car about over (3) months ago since we bought it ? Braking System is sometimes is too hard and sometimes too soft and using too much gas and the "Engine Check is always On " even we have replaced the (4) electronic sensors that the OBD machine pointed out but is still doing the same thing. Please advise us of what to do to resolve these operational safety of our 2006 - ML-350 Mercedes Benz, it is stored in our car garage. The rear reverse camera also stops working and it is saying braking lights are not functioning?
NHTSA complaint #11467959 — an unverified report by a vehicle owner.