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525i

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Antifreeze is leaking
The best thing to do is to have your cooling system checked to find the cause of the broken tube. The system may have other issues that would need addressed at the same time. That being the case, I recommend...
Question
Steering wheel making funny noise
Is this noise coming from inside as if from the column itself? Or is the noise coming from under your hood in the engine area? Do you hear it under the car? When you turn your steering wheel it is...
Question
Steering Wheel Lock Malfunction light on
Hi there. On a vehicle, such as yours it is common for certain components to not receive adequate voltage. This is due to the added accessories a BMW vehicle has. Also, a possibility is that it will need a software...
Question
Car overheats
This is a very broad question with little information to go on. The most common causes of overheating are low coolant or the engine cooling fan clutch since your car has a mechanical fan. More information would be required to...
Question
"Gear may be engaged. Drive moderately."
Hi there. Sounds like you might be having an internal transmission issue. Automatic transmissions have many sensors and solenoids as well as valves, bands and clutches that are responsible for proper operation. Transmissions can set codes just like the engine,...
Question
Rear door not opening
The rear doors have a child safety selector in the door jam that will not allow the door to be opened from the inside door handle, if the lever is selected to lock. The door should be able to be...
Question
Starter parts
Hello. You will need all of the bolts for the intake manifold, intake manifold gaskets, and starter bolts. The bolts must be replaced because they are made from aluminum, and are designed for one-time use. Gaskets should always be replaced...
Question
Extreme power loss, engine rattling.
Using 15w-40 instead of 5w-30 could be the cause of your problem. Your engine has very small passages that lead to the valve train. One components in particular, hydraulic lifters, require a good flow of oil through a small passage...
Question
I'm car shopping
Hey there, that is pretty low mileage for a 10 year old car. To be safe, I would suggest scheduling a pre-purchase inspection on the car before making a final purchase. This way, you can have a local expert give...
Question
Front seat backs twisting when moving forward or back
These seats are reclined electronically via electric motor within the seat. This motor is only mounted on one side of the seat and acts directly on that side whereas the other side is acted on by a cable that is...
Question
Automatic transmission jerking
Hello. A common cause of transmission hard shifting is dirty transmission fluid. I suggest checking the transmission fluid. However, it is quite likely that the cause of the transmission malfunction is that the transmission module needs reprogramming. There is an...
Question
Car been sitting in garage for over a year. Bad starter.
Hello. There are quite a few things that you should do. The extent to which you do them will depend on need as you prioritize it with the budget you have. After replacing the starter, you will also want to...
Question
car loses power, hesitates, and miss fires
From the symptoms described, it does seem that your BMW is unfortunately experiencing engine misfires. However the source of these misfires can really be caused by multiple sources, from worn out spark plugs, to even a failing mass air flow...
Question
Does a transmission module needs to be reset after replacing the transmission?
Hello there, in some cases the transmission control module will need to be reflashed or programmed to the new transmission or it will need to be updated with the newest software. Usually, only dealers have the ability to program the...
Question
In mornings before work (cold usually), my car acts like it wants to stall in idle/park. Give it gas 1-2 minutes. No more issues
Hello and thank you for contacting YourMechanic. What seems to be happening is the EGR valve is sticking open and when it gets hot, the valve shuts. This will cause an engine to stumble when first turned on. Anther thing...
Question
Steering does not respond properly, do i need to replace the gear box?
As you know, the sway bar connects suspension components on opposite sides of the vehicle. The stabilizer bar should be checked for stiffness. This causes side-to-side motion in the car which affects steering and handling of the vehicle. Failure to...
Question
My door does not lock or unlock. Would I need to replace a fuse or buy a new key?
I believe the door lock actuator has failed, not a fuse or key. BMW door lock actuators (part electric, part mechanical) have what is essentially a two-stage lock, and can fail and become "double-locked". Sometimes, exercising the "unlock/lock/unlock" cycle multiple...
Question
Car will not start. It was running fine, normal shut down, and wouldn't start back up five minutes later.
It really does sound like your battery has gone dead. Sometimes they can develop an internal short where they seem fine one moment then go dead the next. The indicators on the chargers usually don't tell the whole story. ...

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