FaultScore

BMW Z4 engine problems

78 of the 1,444 complaints filed about the BMW Z4 are about the engine — 5% of everything owners reported. The worst model year for it is 2011.

78

Complaints

5%

Share of all complaints

1

Crashes

0

Fires

Engine & Cooling complaints by model year

2003 Z4 12 15.4%

Median failure at 48,000 miles

2005 Z4 3 3.8%

Median failure at 42,800 miles

2006 Z4 9 11.5%

Median failure at 53,000 miles

2007 Z4 10 12.8%

Median failure at 34,000 miles

2008 Z4 3 3.8%
2009 Z4 5 6.4%

Median failure at 28,000 miles

2010 Z4 4 5.1%

Median failure at 8,000 miles

2011 Z4 17 21.8%

Median failure at 30,000 miles

2012 Z4 4 5.1%

Median failure at 88,532 miles

2013 Z4 1 1.3%
2014 Z4 2 2.6%

Median failure at 26,000 miles

2015 Z4 3 3.8%
2016 Z4 1 1.3%
2019 Z4 2 2.6%

Median failure at 200 miles

2020 Z4 2 2.6%

Median failure at 3,300 miles

What owners said

2020 BMW Z4 Boynton Beach, FL

ENGINE

The engine starter failed on my 2020 BMW Z4 M40i. The vehicle experienced starting failures and the repair shop diagnosed a faulty/shorted engine starter assembly. The symptoms and component failure match the exact defect description of active safety recalls NHTSA 24V-576 and 25V-636 (Starter Motor Fire Risk due to electrical short circuit/overheating). However, when checking my specific 17-digit VIN, the manufacturer has excluded my vehicle from the recall population. Because this is an identical component failure that poses a severe vehicle fire and safety hazard, I am requesting that the NHTSA investigate a recall expansion to include my vehicle's production batch. I have retained the diagnostic reports and repair invoices as evidence.

NHTSA complaint #11751896 — an unverified report by a vehicle owner.

2015 BMW Z4 Detroit Lakes, MN

ENGINE

My 2015 BMW Z4 vehicle has a coolant pump safety recall. It reportedly could cause a short circuit and thermal event or fire. I bought the vehicle while living elsewhere and am now in a small community with 4 major automobile dealers but not BMW. The nearest BMW dealer is about 220 miles away. I contacted that dealer. The service rep said it is 1.5-2 day repair and a loaner vehicle may be available. The repair time sounds wrong but is what she said. She said the dealership would not work with any facility close to me to make the repair so I must drive the 440 plus round trip miles for BMW dealer repair. Repair of 1.5 to 2 days means I would either need lodging and waste least 2-3 days of my time or drive back home with a 2nd trip to the dealer to return a loaner and get my car, 880 miles and many hours driving. Even a 1 day repair means 440 miles and many hours. Called BMW Recall Hotline at [XXX] & explained my situation. They declined help saying the dealer decides how the repair is handled. I called BMW Customer Service [XXX] . They declined help & said a BMW dealer must repair unless it wants to work with another repair facility. I submitted a web-form message on BMW's corporate website online message portal outlining the problem and requesting help to get the safety recall fix completed in a convenient manner; asked to escalate if possible. They replied 3 days later declining to help saying: "The recall would have to be performed at a BMW dealership. Unfortunately, towing assistance is not available for this recall. If you would like to have the repair performed at another mechanic, It would be a non-reimbursable out of pocket expense. I would not be able to submit an escalation in this matter because it does not meet the criteria to be escalated. I apologize about an inconvenience this may cause." This seems unreasonable for a safety recall that could cause a car fire. Can NHTSA please help me obtain a reasonably convenient repair from BMW? INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT

NHTSA complaint #11691012 — an unverified report by a vehicle owner.

2015 BMW Z4 Anaheim, CA

ENGINE AND ENGINE COOLING

The contact owns a 2015 BMW Z4. The contact received notification of NHTSA Campaign Number: 24V608000 (ENGINE AND ENGINE COOLING, ELECTRICAL SYSTEM); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

NHTSA complaint #11666290 — an unverified report by a vehicle owner.

2014 BMW Z4 Bethany Beach, DE

ENGINE AND ENGINE COOLING

The contact owns a 2014 BMW Z4. The contact received notification of NHTSA Campaign Number: 24V608000 (Engine and Engine Cooling, Electrical System); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

NHTSA complaint #11654902 — an unverified report by a vehicle owner.

2015 BMW Z4 Sarasota, FL

ENGINE AND ENGINE COOLING

The contact owns a 2015 BMW Z4. The contact received notification of NHTSA Campaign Number: 24V608000 (ENGINE AND ENGINE COOLING, ELECTRICAL SYSTEM); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue. The manufacturer was not made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

NHTSA complaint #11647400 — an unverified report by a vehicle owner.

2014 BMW Z4 at 26,000 miles Garden City, NY

ENGINE AND ENGINE COOLING

The contact owns a 2014 BMW Z4. The contact received notification of NHTSA Campaign Number: 24V608000 (ENGINE AND ENGINE COOLING, ELECTRICAL SYSTEM); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue. The manufacturer was made aware of the issue. The contact stated while driving 30 MPH, there was smoke entering the cabin of the vehicle through the A/C vents. There were no warning lights illuminated. The local dealer was contacted to schedule a diagnostic test; however, the appointment was not scheduled because parts for the recall repair were not yet available. The failure mileage was approximately 26,000. VIN tool confirms parts not available.

NHTSA complaint #11643873 — an unverified report by a vehicle owner.

2016 BMW Z4 New Port Richey, FL

ENGINE AND ENGINE COOLING

The contact owns a 2016 BMW Z4. The contact received notification of NHTSA Campaign Number: 24V608000 (Engine and Engine Cooling, Electrical System); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

NHTSA complaint #11643614 — an unverified report by a vehicle owner.

2012 BMW Z4 Fairburn, GA

ENGINE AND ENGINE COOLING

The contact owns a 2012 BMW Z4. The contact received notification of NHTSA Campaign Number: 24V608000 (ENGINE AND ENGINE COOLING, ELECTRICAL SYSTEM); however, the part to do the recall repair was not yet available. The local dealer was not contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

NHTSA complaint #11641959 — an unverified report by a vehicle owner.

2012 BMW Z4 Federal Way, WA

ENGINE AND ENGINE COOLING

The contact owns a 2012 BMW Z4. The contact received notification of NHTSA Campaign Number: 24V608000 (Engine and Engine Cooling, Electrical System); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

NHTSA complaint #11638768 — an unverified report by a vehicle owner.

2013 BMW Z4 Delray Beach, FL

ENGINE AND ENGINE COOLING

The contact owns a 2013 BMW Z4. The contact received notification of NHTSA Campaign Number: 24V608000 (Engine and Engine Cooling, Electrical System ); however, the part to do the recall repair was not yet available. No further information was available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirm parts not available.

NHTSA complaint #11622449 — an unverified report by a vehicle owner.

2011 BMW Z4 Marietta, GA

ENGINE

October, 9, 2024 BMW USA Customer Relations, Recall Services Ms. Ikevia, Thank you following up. My 2021 claim regarding the 2011 BMW Z4 Vanos Bolts recall has been pending since April, 2021. My Z4 almost destroyed itself, after having been left off your recall list. December, 2023 BMW USA provided me written notice my VIN had been added to the recall list so I will be reimbursed for the costly repair. I hope you will help your colleagues who are stonewalling to appreciate my patience as well as my willingness to fight for reimbursement for as long as it takes You do have all my information in your Vanos Bolts Recall file, including detailed photos from my Syncro Car Care professionals who did the repair when you declined to help me. My VIN which is: [XXX] - 2011 Z4 3.0 INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11618865 — an unverified report by a vehicle owner.

2011 BMW Z4 Beaufort, SC

ENGINE

I have written to you previously to advise of repeated engine issues with my vehicle, a 2011 BMW Z4. I also included invoices of work that was done over time to correct a likely Engineering flaw that caused excessive fuel injector failure. In 2021, there was a 10 year extended warranty to replace them. Prior and after the warranty work, there was almost constant engine misfires and engine warning lights resulting in decreased engine performance, and low oil lights that came on every 300+ miles driven. My recent issue with the car involves a starter quitting while driving at 70mph on [XXX]. It was terrifying. It's impossible to put into words that death was imminent. On [XXX], we were traveling to Orangeburg, SC when the car suddenly "died" on the highway. Once we recovered from our shock, we had the vehicle towed to a local shop. The owner advised us that it needed a new starter. Once that was replaced, the car started with a severe screeching noise. After further assessment, it was determined that there was a bent piston rod and that the engine would have rebuilt or replaced. I, a former automotive Engineer, believe that there was an inherent design flaw that caused the car to excessively use oil. Interestingly, I purchased a new BMW and as a condition of sale, was required to sign a document that I would not sue BMW or participate in a class action lawsuit. I was not provided with a copy of the form that was signed, but doubt that it would be upheld in court. BMW needs to be held accountable for their products and their performance. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11599556 — an unverified report by a vehicle owner.

2011 BMW Z4 at 30,000 miles West Milford, NJ

ENGINE AND ENGINE COOLING

The contact owns a 2011 BMW Z4. The contact stated while driving at 55 MPH, the vehicle stalled. The vehicle was difficult to restart. The check engine warning light was illuminated. The contact received notification of NHTSA Campaign Number: 23V707000 (Engine and Engine Cooling) however, the part to do the recall repair was not yet available. The local dealer was contacted. The vehicle was not diagnosed or repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The failure mileage was approximately 30,000. VIN tool confirms parts not available.

NHTSA complaint #11593843 — an unverified report by a vehicle owner.

2011 BMW Z4 at 68,000 miles Gilbert, AZ

ENGINE AND ENGINE COOLING

The contact owns a 2011 BMW Z4. The contact received notification of NHTSA Campaign Number: 23V707000 (Engine and Engine Cooling) however, the part to do the recall repair was not yet available. The contact stated while driving at undisclosed speeds, the vehicle was shaking abnormally with an unknown warning light illuminated. The vehicle was taken to the dealer. The vehicle was not repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The failure mileage was approximately 68,000. VIN tool confirms parts not available.

NHTSA complaint #11588988 — an unverified report by a vehicle owner.

2019 BMW Z4 Saginaw, MI

ENGINE

My grill shutters are faulty and the problem has been persistent and the vehicle is only at 30,000 miles. This is the same part that was issued an extended service contract by BMW for various other models. I believe my model is rare enough to not be included but it should. The existing recall/warranty is “SIB 01 12 19 FRONT GRILLE UPPER/LOWER ACTIVE AIR FLAPS: LTD WTY EXT TO 15 YEARS/150,000 MILES” and I believe mine should be included in this as it is the same engine as these various models. The grill shutters are experiencing the same fault and they do not open and close properly as the models listed. I receive code P05AF which is signals the lower shutters are not closing.

NHTSA complaint #11585790 — an unverified report by a vehicle owner.

2011 BMW Z4 Gilbert, AZ

ENGINE

We received notice of this recall, and while the Manufacturer administratively states there is no remedy, they then list the remedy quite simply which is to replace the Vanos Bolts. I called around to dealers and other Euroshops and every one of them has the parts to remedy the recall. Because of this it is clear that both the remedy and parts required for this recall is in fact available. Given this information this means BMW is either negligently prolonging listing the remedy as available or worse, purposely doing so in order float money that they do not yet want to shell out to dealers to fix these recalls. I have contacted BMW customer relations and while they do not dispute that the parts to remedy this recall are readily available, they refuse to administratively list the recall remedy as available. They refuse to offer to replace or refund the vehicle as well. This is a violation of federal law and our rights as a consumer, whereas the manufactures must proceed in a timely fashion and while they are granted time to develop a remedy and procure the parts needed, there is no part of the law that allows them to unilaterally administratively refuse to list the remedy as available when in fact the remedy is available as are the parts to repair it readily available. Resolutions we will accept on this matter are exactly what is required by the manufacturer by law. Correctly list the recall remedy as available so we can have it remedied at a dealer, and if BMW refuses to do that, they are violating our rights to repair this in a timely fashion and must either replace of refund.  Please assist on this matter thank you so much

NHTSA complaint #11557417 — an unverified report by a vehicle owner.

2003 BMW Z4 at 64,000 miles Sanborn, NY

ENGINE AND ENGINE COOLING

The contact owns a 2003 BMW Z4. The contact stated that the coolant warning light illuminated. The contact then stated that she noticed smoke underneath the hood of the vehicle. The contact stated that upon inspecting the vehicle, she noticed a leak on the ground located near the rear passenger’s side tire. Additionally, the contact then stated that while operating the convertible drop top, she heard an abnormal sound in the motor. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 64,000.

NHTSA complaint #11523426 — an unverified report by a vehicle owner.

2011 BMW Z4 at 106,000 miles Marietta, GA

ENGINE AND ENGINE COOLING

The contact owns a 2011 BMW Z4. The contact started while starting the vehicle, the check engine warning light illuminated, and the vehicle started rough. The vehicle was taken to an independent mechanic and the mechanic stated that the vehicle was experiencing the failure listed in NHTSA Campaign Number: 14V176000 (Engine and Engine Cooling) and referred the contact to the dealer. The dealer was contacted, and the dealer stated that the VIN was not included in the recall. The manufacturer was contacted, and the manufacturer also stated that the vehicle was not included in the recall. No additional assistance was provided. The failure mileage was 106,000.

NHTSA complaint #11518258 — an unverified report by a vehicle owner.

2011 BMW Z4 Coraopolis, PA

ENGINE AND ENGINE COOLING

The contact owns a 2011 BMW Z4. The contact received notification of NHTSA Campaign Number: 22V119000 (Engine and Engine Cooling) however, the part to do the repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

NHTSA complaint #11503398 — an unverified report by a vehicle owner.

2007 BMW Z4 Magnolia, TX

ENGINE AND ENGINE COOLING

The contact owns a 2007 BMW Z4. The contact received notification of NHTSA Campaign Number: 22V119000 (Engine and Engine Cooling) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

NHTSA complaint #11497566 — an unverified report by a vehicle owner.

Other BMW Z4 problems