BMW Z4 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your BMW Z4

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BMW Z4 Problems

Coolant Loss Due to Leak from Expansion Tank

An engine coolant leak may develop from the expansion tank resulting in engine overheating. When a cooling system component fails the entire cooling system should be inspected. It is not uncommon to find additional component have failed or are leaking.

Overheating can cause severe engine damage. If the engine begins to overheat it is recommended to stop at the first available location and have your vehicle towed to a repair shop.

DSC Control Module and Hydraulic Pump

Had to replace DSC Control Module and Hydraulic Pump. Parts and Labor $3400.00

Stop Top Hydraulic Motor Corrosion Due to Poor Design and Drainage in pump housing

William Searfus
1780 Indian Wy
Oakland, CA 94611

BMW of North America
RE: Z4 Soft Top Hydraulic Pump Corrosion
VIN: 4USBU33576LW66425
I love convertibles and have since the first one I saw in the 60s growing up in Southern California on the beach in San Diego…wow!
I have owned a convertible for most of my adult life driving one just about every day.
I bought the beautiful BMW Z4 in 2006 from Stevens C...

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BMW Z4 Questions

engine overheated battery light came on engine shut down will not start after co (1 answer)

engine will not turn over after cooling down for several days starter does not engage

My car makes a squeaky noise while idling. Goes away w depressing accelerator (1 answer)

It just started. Hoses and belts seem to be ok

My dynamic Stability Control Warning Light and yellow 'brake' warning lamp light (1 answer)

. . .light up continuously. The manual says it has something to do with the Dynamic Stability control on the car. Has anyone experienced this and what could be causing this? Also what kind of repair charges can I be looking at. It came on before but went out. It came on again about 40 miles ...

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BMW Z4 Recalls

Airbags May Not Deploy as Expected

On 51 vehicles, some electronic airbag system processors may not be compatible, which may cause the airbags not to deploy if they are needed in a crash. Dealers will inspect and replace the air bag system processors if needed. The recall began June 11, 2004.

The Engine May Stall Due to Fuel Pump Vapor Lock

In certain environmental conditions, the fuel pump may vapor lock, causing the engine to stall. If this were to happen while moving, the driver would not be able to maintain speed or accelerate, increasing the risk of a crash. Dealers will install a resistor in the electrical line powering the fuel pump in order to prevent  an occurrence of vapor lock. The recall began May 11, 2004.

An Original Equipment Front Tire May Have Hidden Damage

On 180 vehicles equipped 18 inch tires, a front tire may have been damaged during production, when it was mounted on the rim. This could lead to tire failure, which could increase the risk of a crash. Dealers will unseat the tire from the rim and inspect the tire for damage. If damage is found, the tire will be replaced. The recall began July 14, 2003.

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BMW Z4 Reviews

I have a 2003 Z4 that I purchased as an extra car to use for local errands and such. I purchased the car in 2011 with approximately 70K mile on it. Within the first 100 miles the water pump failed causing the engine to overheat. The gauges had not been working correctly on the car when I bought it but I thought it was not worth getting looked at. The previous owner had put 5K miles on it or ...
Overall this is a great sports car, in my humble opinion. The styling is not for some, but I happen to love it -- nice not to see yourself coming and going, as they say. Handling and steering response like a go kart, and the 2.5 liter is quite peppy (but yet gets good gas mileage and is said to be indestructible). The overly harsh ride and squirlyness over pavement imperfections can be m...
It is worthy to purchase a new z4 or in maintenance warranty. After purchase a used under warranty z4 would spend a lot of money on maintaining the car in good condition except you have some mechanical background and do your work and research every problems on your own. It is a great convertible little beast but you may need to pay for the beast to keep in a good shape.

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