E46 318 Compact. Won't start, bit odd this...
Discussion
So, a mates BMW 318 Compact stalls and then won't restart. So far I have checked or replaced:
1) It's got fuel supply to the fuel rail
2) spark on number 1 cylinder
3) new spark plugs
4) new air filter
5) crank sensor. Rev counter moves on cranking and shows rpm on diagnostics.
Turns over like a good 'un, but just won't go. Diagnostics only shows valve timing errors, which it has had for a while, which I suspect is a failed vanos unit, but he can't afford to replace at the minute.
Anybody got any bright ideas, because I'm clean out of them.
1) It's got fuel supply to the fuel rail
2) spark on number 1 cylinder
3) new spark plugs
4) new air filter
5) crank sensor. Rev counter moves on cranking and shows rpm on diagnostics.
Turns over like a good 'un, but just won't go. Diagnostics only shows valve timing errors, which it has had for a while, which I suspect is a failed vanos unit, but he can't afford to replace at the minute.
Anybody got any bright ideas, because I'm clean out of them.
TheEnd said:
A 4 cyl with cam sensor/timing errors is usually a jumped tooth on the timing chain.
There's a plastic guide between the two cams that tends to break up, and coupled with an old tensioner, the chain can kick and jump a tooth.
Give that man a cigar... Yep, knackered tensioner caused the timing to slip.There's a plastic guide between the two cams that tends to break up, and coupled with an old tensioner, the chain can kick and jump a tooth.
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