5-Series (E12,E28, E34, E39, E60)Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)
Hey ppl. just a quick question. i have a strange noise coming from the engine this morning. i think its the timing chain. it kinda sounds like a diesel. it sounded pretty bad last night, but this morning i kinda went away. i did switch oil not to long ago. they were both synthetic oils, just different brands. just wondering is this the chain tensioner or does it sound like the chain guides??? The noise did kinda go away this morning. if i rev the engine to about 2500 rpms the noise goes away. please reply, and thoughts appreciated thanks
Dont think that is causing your issue. The timing chain is a lifetime part that should never ever need replacing. Possibilities include your chain tensioner and your VANOS. VANOS seems more likely to me as its more common. Sounding like a diesel is a common complaint. Probably just need to have the VANOS seals rebuilt. Takes about 2 hours labour.
Thanks a lot for the comments guys. i need ur help. sorry, it is a 2000 bmw 540i. i have a tensioner ordered and it is on the way. i will replace that and tell u all wat the outcome was. once ago, thanks a lot.
Hey, ppl from reading up a little bit on these issues. i have come to a conclusion. i dont think its the vanos. my car has had that issue for a while already, but this is a LOUD clattering going on. Cud it be just the tensioner? the one that u can change from the outside??? Or does this sound like the guides. I hoping with all ive got it aint the guides. Thanks for all the comments......
Some people have reported that a loud clattering noise on start up was caused by the belts, the spring tensioner, and the head shield coming loose and rattling. Thus, its hard to determine the exact cause. Some people reported the exhaust hangers breaking off due to rust causing a rattling as well.
I should ask though, what oil are you using? Using to thick an oil can cause the oil to not reach the lifters as quickly as normal causing them to make a ticking sound.
Ok, ppl, now i need ur knowledge. i changed the timing chain tensioner. The noise went down quite a bit. but its still kinda has a ticking noise to it now. fairly loud. If u open the oil cap u can hear its plainly coming from there. R the chain guides gone??? inside the car it smells kinda like hot oil and its feels kinda smoky. Wat r my options??? thanks for any replies.....
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