Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.


hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
60,567 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2006 BMW Z4 engine problems

engine problem

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2006 BMW Z4 Owner Comments

problem #3

May 202016


  • 60,000 miles


Spring in steering wheel that is part of air bag causes warning light. Less than 50 K miles electrical issues. Have had 2 replace the batteries twice in 5 years. Having to replace the blower motor twice, and the console controls for air conditioner and heater. Lastly, when the engine is warm and you come to a stop light, the engine surges drastically. BMW service claims that it is normal. And

- Bremerton, WA, USA

problem #2

Jul 182014


  • 45,000 miles
The contact owns a 2006 BMW Z4. The contact stated that while driving 60 mph, the engine suddenly lost power. The vehicle was taken to an independent mechanic where the technician diagnosed that the intake cam and the valves needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure. The failure mileage was 45,000.

- Martinsville, IN, USA

problem #1

Mar 082014

Z4 6-cyl

  • 76,700 miles
The contact owns a 2006 BMW Z4. The contact stated that while driving approximately 45 mph, the vehicle suddenly stalled. The vehicle was taken to a dealer where the failure was unable to be diagnosed. The manufacturer was made aware of the failure. The vehicle was not repaired. The approximate failure and current mileage was unknown. The mechanic diagnosed the engine as having low compression and he heard the timing chain flapping. The mechanic recommended the dealer taking a look at the vehicle. The dealer determined the bolts holding the timing chain tensioner had sheared off. Updated 07/15/14

- North Brunkswick, NJ, USA

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