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helenafischer1

Mini Cooper Diesel Engine Trouble

I'm at my wit's end with my 2014 Mini Cooper Diesel It has roughly km on the clock, and recently the engine refuses to start, sometimes stalls when idling, and generally runs pretty rough To top it all off, the check engine light is now illuminated I've also noticed a significant increase in fuel consumption The error memory indicates a potential fuel pump malfunction and the car mechanics suspect a defective fuel pump or poor gasoline delivery They mentioned the likely cause could be a defective cable or plug connection Has anyone experienced such fuel system issues before, and can offer some guidance before I potentially spend a lot of money on auto repair

Summary of the thread

A 2014 Mini Cooper Diesel is experiencing engine trouble, including starting issues, stalling, rough running, and increased fuel consumption, with the check engine light on. The error code P0087 suggests low fuel rail pressure, indicating a potential fuel system issue. The problem was traced to a corroded cable and plug connection, which was resolved by cleaning, avoiding the need for costly fuel pump replacement.

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4 comment(s)

emiliaschwarz1

The symptoms you describe certainly point to a fuel delivery issue Does 'error stored in the error memory' mean a diagnostic trouble code DTC was retrieved using an OBD II scanner Can you provide the exact code number Understanding the specific code will help pinpoint the problem

helenafischer1 (community.author)

Yes, that's correct regarding the error memory, I used an OBD II scanner to retrieve the code I should have mentioned that in my original post The error code that came up was P0087 - Fuel Rail System Pressure - Too Low Does this code confirm that the fuel system is the issue What are the next steps for troubleshooting

emiliaschwarz1

Yes, P0087 indicates low fuel rail pressure, consistent with your symptoms Since gasoline delivery is affected, the cable and plug connection might be the culprit as suspected Consider checking the fuel pump relay and its wiring as well If you are not confident performing these checks, it is always recommended to get a qualified car mechanics to check the fuel system

helenafischer1 (community.author)

Thank you for your detailed explanation I appreciate your help in understanding the fuel system better Turns out, you were absolutely right I checked the cable and plug connection myself, and it indeed had corrosion Cleaned it all up, and the Mini is purring like a kitten again Total cost: 95€ for some contact cleaner I'm glad I didn't immediately jump to replacing the entire fuel pump

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MINI

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COOPER