what milage cambelt change? m40 316i?

[_bmw_316_lad_]

just wondering what milage should the belt be changed at? it was done at 60 or 70 k it has now 136k so is it well overdue?? car sold now only to be collected. told the fella its due. but just worried how likly could it break??

[Neil_uk7]

36k I think

[Alex]

every 30k i would say

yours needs doind asap if that was the last time it was done

[_bmw_316_lad_]

every 30k i would say

yours needs doind asap if that was the last time it was done

oh not good. any chance i could take off timing cover and inspect it? or would it just be waste for there would be no sigh of wear?

[Alex]

it would be silly to consider leaving it on

get it changed

[_bmw_316_lad_]

haha just i should of taken that into account b4 i sold it thanks for that.

[StefanAnghel]

mine was done in 1999 at 81.000miles and I did it again this winter with 162000 and the belt was in a very good condition...probably depends the make of the belt and luck?

[harry_p]

it depends how it's been driven too. in theory an engine can be sat at idle and do a billion revolutions and the car will have done 0 miles. a lot of stop / start driving can be a lot worse for an engine than many times the miles at a constant speed.

idle / very low revs are the worst for cambelts as there's quite a lot of shock load going through them as the valve springs fight against or spring round the cam, the motion smooths out at higher revs