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-   -   Potential new owner, a few questions... (https://xoutpost.com/bmw-sav-forums/x5-e53-forum/110496-potential-new-owner-few-questions.html)

andrewwynn 07-04-2019 03:15 PM

Elm will only find basic codes.


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Jay Cartay 07-15-2019 11:38 AM

Well the one I wanted didn't work out. I've seen a 4.6 which has got me interested but it does mention a rattle. It says that they thought it was the timing chain guides and changes those, the chain, the sprockets and the the tensioners but the rattle remained.

Seller believes it's the vanos unit now. Any ideas on the likelihood of that? I have done the bolts, cleaned the solenoids and changed all the seals on an E36 M3 Evo Vanos before, but not touched any other models. I'm tempted though. Though I'd prefer a facelift car the 4.6 appeals... And it has LPG.

andrewwynn 07-15-2019 03:57 PM

The base rattle is from tensionER. Find out if they put in an OEM tensioner when they did the chain guides. Chain guides fail when the tensioner fails. People will skip replacing the part that actually was the problem because it "looks" ok.

Jay Cartay 07-15-2019 04:54 PM

I'll try. The seller says the rattle does change with engine speed. Does that still point at the tensioner?

andrewwynn 07-15-2019 06:42 PM

Rattle tends to fade over time like better after 20 minutes but I'd have to hear an audio clip to have any solid help.

Vanos are known to rattle there is a whole industry to fix it


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bcredliner 07-15-2019 09:38 PM

Most of the time you can use an auto stethoscope to pinpoint the source of the rattle. There are several possibilities that could be the problem. Could even be external. Troubleshoot, troubleshoot, troubleshoot. Suggest finding out if it is worse with a cold start, loss of performance, engine running rough etc.

andrewwynn 07-16-2019 02:39 AM

Yes engine stethoscope good plan.


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upallnight 07-16-2019 11:33 AM

Quote:

Originally Posted by Jay Cartay (Post 1165295)
I've got an ELM327 reader and I also have an old laptop with INPA on it and a BMCABLES setup somewhere at home. I just don't know what the seller will say when I ask to scan it :D

If he won't let you scan it, than just walk away. He might be trying to hide something. Plenty of BMW on the market these day.

EODguy 07-16-2019 11:59 AM

Quote:

Originally Posted by upallnight (Post 1165962)
If he won't let you scan it, than just walk away. He might be trying to hide something. Plenty of BMW on the market these day.

+1 million

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andrewwynn 07-16-2019 03:43 PM

Zero chance I would buy a car so scanning codes. Also. Check emissions readiness. If not ready means seller reset reset recently.


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