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.


pretty bad
Typical Repair Cost:
Average Mileage:
60,333 miles
Total Complaints:
3 complaints

Most Common Solutions:

  1. not sure (2 reports)
  2. replaced top motor (1 reports)
2003 BMW Z4 body / paint problems

body / paint problem

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2003 BMW Z4 Owner Comments

problem #3

Nov 012013

Z4 2.5L

  • Manual transmission
  • 86,000 miles


I'd like to add my complaint on this issue. I noticed that my convertible top was going down really slow so I stopped it halfway (didn't want it to be stuck open). i tried it again a few days later and it was completely dead.

What is the point of having a convertible that won't fold open?

It seems that this problem with the convertible top motor is a well known issue. I can't believe BMW won't step up to fix this problem. It makes me not want to buy another BMW again. These German engineers aren't all they're cracked up to be.

- , Fairfax, VA, USA

problem #2

Mar 122010


  • Automatic transmission
  • 50,000 miles

I have had the hydraulic system repaired for the convertible every years since I bought the car- twice under warranty and one with my own money, and the 4th time i gave up and just keep the top up. Big pain in the ass to have a convertible that one cannot use

- , Hickory, NC, USA

problem #1

Oct 132009

Z4 2.5I

  • Manual transmission
  • 45,000 miles

Top started opening and closing slowly over a period of about 2 weeks. The convertible top motor had conked out 2 years earlier and had to be replaced. It is a known issue due to inadequate drainage of its compartment with resultant corrosion. At that time covered under warranty, but this time the warranty had expired 8 months ago. I complained to the the dealer that if it was the same problem only 2 years later this would be somewhat ridiculous. Erhardt BMW called BMWNA and they covered all but 200 of the 1500 repair. They said they used extra insulation around the new motor, but i am not very confident in this fix. I plan on selling/trading this car before it happens again.

- , Troy, MI, USA

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