BMW E46 Auto 'box issues
Discussion
Just wondered if anyone knows about gearbox ecu issues?
My e46 323i has a problem with the brake light switch which I've been told is related to a fault in the gearbox ecu.
Apparently even though the brake switch is fine the ecu is showing the brakes as being on and therefore recording a fault.
My garage is saying that a new gearbox ecu is the only solution and it has to be programmed to the car by BMW, meaning a £1,000 bill.
Does this sound right? I've seen secondhand 'box ecu on the bay for £70.
My e46 323i has a problem with the brake light switch which I've been told is related to a fault in the gearbox ecu.
Apparently even though the brake switch is fine the ecu is showing the brakes as being on and therefore recording a fault.
My garage is saying that a new gearbox ecu is the only solution and it has to be programmed to the car by BMW, meaning a £1,000 bill.
Does this sound right? I've seen secondhand 'box ecu on the bay for £70.
trickywoo said:
Just wondered if anyone knows about gearbox ecu issues?
My e46 323i has a problem with the brake light switch which I've been told is related to a fault in the gearbox ecu.
Apparently even though the brake switch is fine the ecu is showing the brakes as being on and therefore recording a fault.
My garage is saying that a new gearbox ecu is the only solution and it has to be programmed to the car by BMW, meaning a £1,000 bill.
Does this sound right? I've seen secondhand 'box ecu on the bay for £70.
Your garage clearly is talking well beyond their level of capability.My e46 323i has a problem with the brake light switch which I've been told is related to a fault in the gearbox ecu.
Apparently even though the brake switch is fine the ecu is showing the brakes as being on and therefore recording a fault.
My garage is saying that a new gearbox ecu is the only solution and it has to be programmed to the car by BMW, meaning a £1,000 bill.
Does this sound right? I've seen secondhand 'box ecu on the bay for £70.
Just because an ECU flags a code it does not automatically mean that parts need changing. Correct interpretation of the code and appropriate diagnostics lead to a quality repair.
I would take the car to a franchised BMW dealer and have them diagnose the issue. It could be something as simple as a bad earth. It could be a wiring loom problem. Only decent diagnostics and thorough investigation of the issue will show where the fault truly is.
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