Engine will not rev above 3000rpm & gearbox will not kick down

[Gooner198o]

Hi guys. Ignore my last post. I managed to do the swirl motor trick. Resistor at locations 2 and 3 of the swirl motor connector.

Https://www.ebay.co.uk/itm/383075899165

That is the resistor i bought. Is it the right one?

The car is still juddering when driving and lots of black smoke when revving up to 3k.

Cheers.

 

[derekpayne]

I did the resistor mod on Friday, so far so good with no juddering or kangaroo juice yet, will post back in a few weeks or if it starts again.

I have several resistors spare as I bought 20 of them if anyone needs one let me know.

 

[Larkone]

Hi guys. Ignore my last post. I managed to do the swirl motor trick. Resistor at locations 2 and 3 of the swirl motor connector.

Https://www.ebay.co.uk/itm/383075899165

That is the resistor i bought. Is it the right one?

The car is still juddering when driving and lots of black smoke when revving up to 3k.

Cheers.

You need a 4.7k ohm - the link you have provided has a value selector so no idea which one you chose.

 

[Gooner198o]

You need a 4.7k ohm - the link you have provided has a value selector so no idea which one you chose.

Hi mate. This is the one I picked. Seems like the right one.

 

[W1ghty]

Hi mate. This is the one I picked. Seems like the right one.

That’s it buddy

 

[mettalforma]

The jerking has been mentioned as turbo actuator issues on the om642 , I remember reading about it when I had similar occasional jerking usually on a hot start , but my last issues like that were at 50k and I’m at 106k now .
If you are handy you could spend a couple of quid and put a 4.7k ohm resistor into the middle two terminals of the inlet port motor (£2 on eBay) , if this works it indicates an ilps motor/swirl flaps issues .
You could also take the actuator apart , mine had grey motor gunk (from the carbon brushes?) inside , I sprayed it clean and put some high temp grease on the worm gear drive inside . The actuators can suffer from a break in the four wires that sit on the outside of the board inside , check this when you open it .
You could also spray clean the tiny hole on the inside of the exhaust back pressure sensor that sits by the egr valve and the turbo
All free jobs (ish)

Hi W1ghty,
It's possible you explain what is the resistor test? I mean, what it's done ?

Thank you

 

[W1ghty]

Hi W1ghty,
It's possible you explain what is the resistor test? I mean, what it's done ?

Thank you

https://r.search.yahoo.com/_ylt=AwrJS5UBVqtg7kgAPjAM34lQ;_ylu=Y29sbwNpcjIEcG9zAzMEdnRpZAMEc2VjA3Ny/RV=2/RE=1621870209/RO=10/RU=https%3a%2f%2fwww.300cforums.com%2fthreads%2fswirl-motor-cheap-replacement-solution-pennies.97281%2f/RK=2/RS=whgStaq6Qxpe9VFyZ4hKfAVHi.U-

 

[DSM10000]

There is only one answer and that is an experienced MB specialist with Star.

As above, it could be many things and a generic OBD scanner is just not up to the job.

I have had similar symptoms and it turned out to be a split intercooler pipe but the fault codes mentioned boost pressure and pressure sensors.