R55 hard time starting...
#1
#2
Also, how old are the spark plugs. Is the fuel pump original?
#3
#4
Could be fuel system issue. I believe our S models have a 60K plug change interval, and the JCW's are every 30K. While you don't want to frustrate yourself throwing parts at the problem, can you afford to have a MINI shop diagnose it for you?
At some point, if those plugs are original, they will need to be changed, I just don't want to mislead you into thinking that's all your hard starting problem needs to be cured.
At some point, if those plugs are original, they will need to be changed, I just don't want to mislead you into thinking that's all your hard starting problem needs to be cured.
#5
Recently had same issue.
Dealer diagnosed it as high pressure fuel pump and carbon buildup on the intake and valves. They replaced fuel pump under CPO warranty and covered 85% of the walnut blast as it was the second time required in 43k miles.
I had previously tried to diagnose it myself and ended up changing the pre-cat O2 sensor... Turns out CPO would have covered that too.
Mine is 2010 clubman s.
Dealer diagnosed it as high pressure fuel pump and carbon buildup on the intake and valves. They replaced fuel pump under CPO warranty and covered 85% of the walnut blast as it was the second time required in 43k miles.
I had previously tried to diagnose it myself and ended up changing the pre-cat O2 sensor... Turns out CPO would have covered that too.
Mine is 2010 clubman s.
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