Swirl flap linkage.

Wighty

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You can do that too, althought that requires the manifold to be removed. If the manifold is clean and they are not causing issues, I would keep them connected, as they do increase torque and MPG.
Very true , but I was thinking if he has a 210 model the manifold is probably well gunged up by now (unless it's been done before ) ?
 

turbopete

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You can do that too, althought that requires the manifold to be removed. If the manifold is clean and they are not causing issues, I would keep them connected, as they do increase torque and MPG.
odd that you noticed that as I noticed absolutely NO difference when I removed them from my old 203 with the OM611 engine.
 
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alexanderfoti

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odd that you noticed that as I noticed absolutely NO difference when I removed them from my old 203 with the OM611 engine.

There was a noticeable one on my 210, also with smoke production.
 

Taffy7hfa

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I'm definitely with you on this Alexander Foti, I find it odd that most people seem to assume that swirl flaps are intrinsically "bad" where's the evidence ? yes the engineering of the mechanism may be substandard, but surely its better to maintain/repair than delete ??
 

Wighty

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I'm definitely with you on this Alexander Foti, I find it odd that most people seem to assume that swirl flaps are intrinsically "bad" where's the evidence ? yes the engineering of the mechanism may be substandard, but surely its better to maintain/repair than delete ??
I think the problem with the swirl flaps is that to replace them means the manifold needs to be removed and cleaned otherwise to replace the swirl flaps will be an expensive short term waste of time that could soon exceed the value of the vehicle (because of labour charges ) ???
 

bob 6600

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I did remove and clean the manifold a couple of years back so it shouldn't be gunked up. The flaps seem OK as is the motor. For this reason I believe the best solution would be to replace the bar.

I've ordered one from MB, let's see if it sorts the problem.
 

Botus

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You might be unpleasantly surprised at how much gunk collects in just 2 years. Mongrel stuff.

Indeed....

on a BMW forum when I still had my 335d, America owners (where the whole market was quite new to tractor engine'd cars) would regularly have the inlet manifold removed and walnut blasted clean by the dealers "under warranty" one to two times a year.

On a BMW the 2005 to 2008 cars have brass butterflies and these were designed to fall off at 65k miles and take out the engine.
Later BMW cars went to plastic butterflies that are designed to fall off, and they only take out the turbo 100% of the time and the engine 50% of the time from 85k miles.

When asking about removal on mine the techs said most owners can't tell the difference, a few think at low revs it looses a tiny amount of power, but we're talking before the turbo actually adds anything so its "nothing minus 5 to 10%". I sold the car at 62 k miles, when I went back to the dealer 2 months later, allegedly the next owner had just cost him two turbos and other engine work... he wasn't happy... I thought well you're in the trade you should know what rubbish they are peddling !

On my father's 103k mile 280CDI, leaving the swirl flap motor disconnected makes no difference that he or I have noticed, with the 10p resistor in place the Car diagnostics and STAR doesn't know the difference either.

In fact fully open, dependant upon the amount of gunk, they'll be some effect of the secondary port being partially blocked that may create a similar affect. Its less likely to block fully as will always have airflow and the car won't breakdown. So one might lose much less than 5% at 1400rpm and end up with a 10% gain at 2000rpm where you want it, because there's less restriction from a fully open flap vs a partially open flap working a nearly completely blocked secondary port that if lucky is still awaiting fuse F44 popping and putting the car in limp mode...
 
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om613

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I did remove and clean the manifold a couple of years back so it shouldn't be gunked up. The flaps seem OK as is the motor. For this reason I believe the best solution would be to replace the bar.

I've ordered one from MB, let's see if it sorts the problem.

You should have asked as I did have one spare.
 

bob 6600

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You should have asked as I did have one spare.

Thanks for the kind offer, yes i should have asked lol. It's arriving tomorrow at MB and it has been paid for as my dealer no longer orders stuff in over the phone and no longer takes payment over the phone either due to fraud.

It was a stupid price but them most things are from them!
 

om613

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I can try and find it within my 6 crates of 210 613 bits and If I do, it's yours for the postage.

There is a chance that it got binned, as I de-flapped the spare manifold, intending to plug it.
There again, I rarely throw stuff ("what might come in handy") away!
 

bob 6600

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I can try and find it within my 6 crates of 210 613 bits and If I do, it's yours for the postage.

There is a chance that it got binned, as I de-flapped the spare manifold, intending to plug it.
There again, I rarely throw stuff ("what might come in handy") away!

I will bear it in mind when I have something go kaput lol
 

bob 6600

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Well got it on today, bit of a faff from above but just about doable with my fat hands.

Haven't driven it yet to see if there is any difference.

Exhaust clamp and gasket also replaced as clamp was broken and the fumes were killing me every time I worked under the bonnet.
 


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