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)
I will try to make this short. I replaced my power steering hoses and motor mounts on a 95 530i 3.0. I followed all the safety stuff, like disconnect the battery and such. Everything went just fine. All back together and started the engine and it ran for about 30 seconds and then died. I tried to start it again and it sounds like there is no compression. I checked for fuel and spark and everything is there and working. I checked under the oil fill and the chain is turning. I then did a compression check on one cylinder and it only has 75 pounds. Does anyone have any idea what could cause this? Does anyone have a breakdown of the timing components on the 3.0 engine? Any Help would be greatly appriciated. Thank You in advance.
Feel free to bookmark that site. Its a useful resource, especially when you are trying to sort out part numbers etc.
Good luck with your engine problems, let us know what youend up doing to resolve the issues.
Thank you. I already did that. It looked to me like someone had been in there before working on either the Alternator or power steering hoses. It looks like they may have used heat of some kind in the area because it is charred in the general vicinity. Also the wires to the Alternator were bare in a couple of spots and the small wire was spliced. There was also a heat shield that wasn't there. I use heat shrink and soldered it back to original and found a shield in the wrecking yard. It does seem to turn a little slow. The battery seems to be a little low. I think I am going to check all the connections and grounds to see if it is just turning too slow to build the compression needed. If anyone has anymore ideas, please feel free to chime in here. I have been turning wrenches for over 40 years now, but as any good tech knows, there is always more to learn. I am by no means up on BMW's. I have done a lot of work on them, but have never gotten into a compression issue or electrical issue on one. I guess I will learn though. I really don't have a choice. Thanks again for any help. I will be posting what I do find all the way through this. Knowledge is a good thing, especially from experience.
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.