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.

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hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
66,333 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.

2004 BMW 525 drivetrain problems

drivetrain problem

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2004 BMW 525 Owner Comments

problem #3

Mar 282011


  • 60,000 miles


Tranmission failure on this car. Had transmission rebuilt to no avail (over $3000). Wound up getting our $$ back, thank goodness. Apparently, in reading all the info online, the 2004 525I transmission failures is very common. Only remedy is a full-blown BMW replacement with the clutch already set.

- Bethesda, MD, USA

problem #2

Feb 042004


  • 20,000 miles
The contact owns 2004 BMW 525I. The contact stated while driving 30 mph the transmission would not shift and when it did shift it lunged forward. The contact mentioned that the failure occurred several times before but he was unable to be duplicate it. The vehicle was taken to the dealer who diagnosed that the mechatronic sleeve was leaking transmission fluid and as a result it needed to be replaced. The manufacturer was made aware of the failure but did not offer any assistance since the vehicle was no longer under warranty. The vehicle was not repaired. The failure mileage was 20,000 and the current mileage was 120,000.

- Blythewood, SC, USA

problem #1

Oct 132011

525 6-cyl

  • 119,000 miles
I own a 2004 BMW 525I with 119,000 miles on the engine. I experienced my car making a thump sound and then the I would lose acceleration. I called the mechanic and they could not find the problem because it did not show the dash errors. This had been going on for 3 weeks and then the mechanic told me my transmission needed replacing. I am disappointed that this is a common problem and nothing is being done about this. I will never buy a BMW again.

- Indianapolis, IN, USA

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