Servie engine soon problems
I own a 2001 540I BMW with 85k miles
Recently the SES light has been coming on about every 150 miles afer each reset.
The mechanics said BMW fault code was 25 (?) and they replaced the intake exhaust gaskets. O2 sensor , MAF look good. No air/vacuum leaks found.
However after another 150 miles the SES light came back on .
This time fault 26 came up.
Can anyone tell me what these codes mean and do you have any clue as to what is wrong.
Thanks round top