Early Model E28 533i BMW High Idle Control Issue Finally Solved!

New Idle Control Valve: ebay.us/6KZOOQ
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[@BIMMERZEITT]

New Idle Control Valve: ebay.us/6KZOOQ

[@DustinWunderlich]

Thank you so much. I have been chasing everything like you did. I have a 1982 633 with the green module in the glove box. I actually have a metal idle control but knowing that they go bad is exciting to easily replace

[@Walczyk]

you probably thought it was open and closing fine. but it wasn’t opening big enough. i got mine free thankfully

[@BIMMERZEITT]

Interesting. It is possible. The best way forward for most of us is to just buy the metal 325e valve for $100-$200 and get back on the road! Prices have gone very high unfortunately. BMW moved away from the plastic ones for a reason I guess.

[@Walczyk]

@@BIMMERZEITT I tried cleaning mine and ended up using a car battery to attach to it. it would close shut when voltage was applied but it seemed like it was a very small range of motion and it didn’t help the idle. i took a dental pick and pulled on the plunger thing down and it opened up more than normal. there’s a lot of gunk there still apparently. i sprayed carb cleaner and moved it back and forth and it slowly got better until it reached the right idle speed. it isn’t perfect, i have to tap on it to get it to open sometimes. i’m deciding between a used one for $150 or a new old stock for $450.

[@nikita9604620]

Hey I was looking how to solve the same problem on my 633 and found that video. Order new valve from your link but new valve has 3 wires connector. The original one has just 2. How did you wired it? Could you explain please? Thank you.

[@BIMMERZEITT]

The link sends you to an eBay search for the 325e/s valve. You have to look through the listings to make sure you find the right one. There is no way to list to a single listing because well, we're talking about used individual parts here from different sellers. Sorry if that was confusing!

[@carterlukow7085]

I have an e30 325e 2.7L I6 and my idle bounces, any suggestions?

[@carterlukow7085]

1985*

[@arfur8]

Is this information applicable for e28 528e? Mine surges and has high idle. Any info is greatly appreciated.

[@BIMMERZEITT]

It could be a faulty idle valve. Try cleaning yours first and testing resistance reading across terminal pins. If that doesn’t work, I’d replace it with a known tested working one. Not cheap these days!

[@BIMMERZEITT]

Also, high idle and surging idle can also be a torn intake boot (rubber elbow) or an intake leak of some kind, like the intake manifold gaskets. Smoke test for leaks, and check the ICV.