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elizabethwinkler1

Mini One Diesel Throttle Valve Issue

My 2014 Mini One diesel is showing signs of a defective throttle valve. I've noticed a considerable increase in fuel consumption lately, and the engine is starting poorly. My initial thought is a defective accelerator pedal module. Any experience with this?

Summary of the thread

A 2014 Mini One diesel exhibited signs of a defective throttle valve, including increased fuel consumption and poor engine starting. The initial suspicion was a faulty accelerator pedal module. The problem was confirmed to be the accelerator pedal module, which was sending incorrect signals to the engine control unit, affecting the air-fuel mixture. After replacing the module, fuel consumption returned to normal.

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4 comment(s)

johannes_williams1

High fuel consumption and poor starting could be a number of things. Have you checked the air intake for any obstructions? Also, when was the last time you performed throttle cleaning, paying close attention to the throttle body and engine throttle's control valve?

elizabethwinkler1 (community.author)

The air intake seems fine. I haven't done any throttle cleaning recently. Could a defective accelerator pedal module really cause these issues even if the throttle body itself appears clean? How does it connect to the engine throttle?

johannes_williams1

If the accelerator pedal module is faulty, it can send incorrect signals to the engine control unit, affecting the air-fuel mixture and causing both high fuel consumption and starting problems. It's connected electronically, controlling the engine throttle indirectly. Given your symptoms and the age of the vehicle, it's plausible. Probably best to get it checked at a workshop to confirm the diagnosis though.

elizabethwinkler1 (community.author)

Just wanted to update this thread. It was indeed the accelerator pedal module. The repair set me back 205€. Fuel consumption seems back to normal now. Thanks for pointing me in the right direction.

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MINI

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ONE