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3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

 
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#1 (permalink) Old 09-15-2005, 01:16 PM
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Unhappy Pissed off!

Well i've just got my car back from the garage - its been in for an air flow thing replacing - it's situated to the back of the engine bay - just before the windscreen area. its circular - bout the diameter of a coke can. has if i remember correctly three hose connections coming from it. and apparently its supposed to have a needle in the middle of it.

anyway it was revving high - so i was told that need replacing - so hey presto. its replaced and the damn things still doing what it was before! anyone got any idea what could be causing this?

my garage seems to think its something to do with the throttle/throttle cable??

please please help me!
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#2 (permalink) Old 09-15-2005, 01:24 PM
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could you be a little more clear on what the problem is? It sounds like they replaced your MAF. Which is blamed for a variety of problems. However, most of them that I can think of, wouldn't really invlove a throttle cable, uless the cable was snagged or otherwise damaged. Which they should be able to visually check, they shouldn't be "thinking" anything is wrong with it, they should be in there looking at it.
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#3 (permalink) Old 09-15-2005, 01:31 PM
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problem

true mate, very.

could what i've just described be different to the idle control valve?

i think it said on the receipt from the garage something to do with air meter or something.
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#4 (permalink) Old 09-15-2005, 01:55 PM
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MAF + Mass Airflow Meter. That is very likely what they replaced. When does your engine rev high? All the time? Does it idle high? Or are you needing to rev it higher to get the same power? This last one may indicate that an O2 sensor is going out. GIve us a little bit more deatil, please.

BTW, I'd be ticked off if I were you also.

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#5 (permalink) Old 09-15-2005, 02:19 PM
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problems

no mate, when im driving it, it seems to be alright, but its when i come to junctions or stopping at the road side that the revs climb!
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#6 (permalink) Old 09-15-2005, 04:04 PM
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you might have a vacumn leak....but I'm going with the ICV from what your describing. just my thoughts

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#7 (permalink) Old 09-15-2005, 04:50 PM
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Just been out for a drive in the car, and when i was putting my foot down on the accelerator the car was jerking for some reason? don't know why.

Actually as you've mentioned vaccum leak - the guy at the garage said it had an air leak on it.

I really need to get it fixed! and it looks like it needs a service too - the yellow and red lights are showing, and the last service it had was an oil change.
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#8 (permalink) Old 09-15-2005, 05:20 PM
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are your revs 'bouncing'? Do your revs climb really high? Like red line and fast

There was a TSB/RECALL for the 318's at one point. The throttle cable attaches to the throttle body with a plastic retainer.. that retainer breaks/cracks. My 94 318is would red-line after sharp turns... turns out the cable would slip and keep the throttle open. They installed metal spring tension clips over the retainer to keep it in place.

Bouncing revs can come from MAF, ICV or vacuum leak. You can try cleaning the ICV first as well as the MAF before changing them, you'll eventually need to replace as the problem will return. The MAF ain't cheap to replace and your vacuum leak needs to be the first thing to look for before cascading to the other culprits. My 318's vacuum leak was a cracked plastic tube on the top of the throttle body. I send a pic but I don't have the 318 anymore. Common problem.

The links may help you identify the parts

http://www.realoem.com/bmw/showparts...18&hg=13&fg=15

http://www.realoem.com/bmw/showparts...02&hg=13&fg=15

http://www.realoem.com/bmw/showparts...58&hg=11&fg=45
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#9 (permalink) Old 09-15-2005, 07:23 PM
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Thinking about it now, I had a 95 VW Jetta that I built a turbo kit for, and the throttle use to surge, it was because of my ICV. If I unplugged it and plugged it back in, while the car was running, and it corrected itself. I ultimatly replaced ICV and didn't have a problem afterwards. This may work for you, try unplugging it and plugging it back in, while the car is running.... just food for thought.

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#10 (permalink) Old 09-15-2005, 10:42 PM
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^^ Why not clean it insetad?

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#11 (permalink) Old 09-16-2005, 07:25 AM
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Quote:
Originally Posted by e36surge

There was a TSB/RECALL for the 318's at one point. The throttle cable attaches to the throttle body with a plastic retainer.. that retainer breaks/cracks. My 94 318is would red-line after sharp turns... turns out the cable would slip and keep the throttle open. They installed metal spring tension clips over the retainer to keep it in place.
This affected 1996 E36ís (410,000 units), but other years may also apply.

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#12 (permalink) Old 09-16-2005, 11:12 AM
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My 1994 had it and it was one hell of an experience... the recall was for 1996's, you are correct dudesky, but the TSB was how I fnally found the problem... so, Yeah, RICH328 did the problem get fixed. I just realized I may have sent you links for the 318... sorry for the confusion...
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#13 (permalink) Old 09-16-2005, 12:04 PM
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Quote:
Originally Posted by e36surge
My 1994 had it and it was one hell of an experience... the recall was for 1996's, you are correct dudesky, but the TSB was how I fnally found the problem... so, Yeah, RICH328 did the problem get fixed. I just realized I may have sent you links for the 318... sorry for the confusion...
It's alright mate - its the 318i i've got the problem with, i took some pics of the engine when i got home today to try and get some more help on here.
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#14 (permalink) Old 09-16-2005, 03:47 PM
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Quote:
Originally Posted by drz
^^ Why not clean it insetad?
I did a few times and it still acted up so.....I just said screw it and replaced it.....that was my case though...Rcih may be able to get away with cleaning it...mine was just defective....below is a good link if you want to clean it Rich...it gives you basics and some pics.ICV cleaning

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