variable valve timing sprockets??

[jimbomercedes]

variable valve timing sprockets, what are they. Mercedes says my w204 needs them??

whining on cold start for about 20 secs??

 

[ernie]

That is a bit of a new problem I think. A bit more info might help to help you.

What engine is it, 1.6 or 1.8? Do you know the engine no.?

What mileage has it done?

Any rattles on start up?

Did they quote a price for the work?

Are they going to change the chain as well?

I'm not sure if these are the sprockets directly on the end of the cams or whether there are secondary sprockets that give the variable valve timing. Some of these engines have a motor that moves to give the VVT.

As I say a bit more info, please!





Ernie

 

[jimbomercedes]

That is a bit of a new problem I think. A bit more info might help to help you.

What engine is it, 1.6 or 1.8? Do you know the engine no.?

What mileage has it done?

Any rattles on start up?

Did they quote a price for the work?

Are they going to change the chain as well?

I'm not sure if these are the sprockets directly on the end of the cams or whether there are secondary sprockets that give the variable valve timing. Some of these engines have a motor that moves to give the VVT.

As I say a bit more info, please!

Ernie

Thanks for the reply. Sorry for the delay.

Engine is a 1.8 cgi.

Mileage 40k

Whining on startup for about 20 secs cold start only.

Warranty

They said it was to do with the VVT timing.

Hope that helps.

 

[ernie]

That probably makes it the 271 engine, then, of which there is a lot of info in here. They are prone to cam chain/sprocket/tensioner problems and it's better to get them fixed before the problem develops into total engine failure. Having said that 40k is a bit earlier than most; usually nearer 65k onwards depending on a number of factors.

If the car is not in warranty and MB are not offering any contribution towards the cost, I would get a second opinion before shelling out the sort of money they will want.

Maybe a MB Indy who has experience in fixing these could offer further advice.

Ernie

 

[markjay]

And if replacing the sprockets, it is worth getting aftermarket hardened ones rather than the original MB items.

 

[ernie]

There's actually another thread running on here with the same problem. As to aftermarket sprockets, I don't have any experience, but others might be able to offer advice.

ERnie

 

[jimbomercedes]

There's actually another thread running on here with the same problem. As to aftermarket sprockets, I don't have any experience, but others might be able to offer advice.

ERnie

Tried a search but can`t find it. I have the turbo engine so does that make it a m271 ??

Think ive brought a lemon. Maybe I reject the car under the sales of goods ACT and ask for refund.

There fixing the problem under warrenty.

thanks

 

[ernie]

The 1.8s of that era are all 271s; some 1.6s are also 271s but the later 1.6 is a 274.

If it is a MB dealership that is doing the work it should be OK, but in any case, I think under the Sale of Goods Act, you've got to give them the chance to sort it. If they can't, then is the time to invoke your rights under that Act.

The title of the thread referred to is,"C180 Kompressor (2006) - Replace Timing Chain?"


Ernie

 

[markjay]

'C180 Kompressor 2006' is most certainly the M271 engine, and it is Supercharged, not Turbocharged.

 

[ernie]

Yes...Kompressor means supercharged; the OPs car is probably the turbocharged version, but the same problems apply, by and large as it's a 271.

Ernie

 

[markjay]

Yes...Kompressor means supercharged; the OPs car is probably the turbocharged version, but the same problems apply, by and large as it's a 271.

Ernie

Not if it's a 2006 model....

 

[WG M-B]

You cannot buy upgraded timing gears for the turbo m271 engine yet as far as I know.
The defect with the later gears is internal, rather than external teeth wear (as with the earlier kompessor engines)
The start up rattle would likely be a fault with the gears

 

[ernie]

You cannot buy upgraded timing gears for the turbo m271 engine yet as far as I know.
The defect with the later gears is internal, rather than external teeth wear (as with the earlier kompessor engines)
The start up rattle would likely be a fault with the gears

Now this is a useful and informative post and probably relevant to the OP's car which is a 2010 car and not 2006...wonder if these problems will also apply to the later 274 1.6 engines?

Sorry if I caused some confusion by referring to another thread which relates to a 2006 Kompressor engine which is also a 271. One of these days MB may get it right!


Ernie

 

[jimbomercedes]

Now this is a useful and informative post and probably relevant to the OP's car which is a 2010 car and not 2006...wonder if these problems will also apply to the later 274 1.6 engines?

Sorry if I caused some confusion by referring to another thread which relates to a 2006 Kompressor engine which is also a 271. One of these days MB may get it right!


Ernie

Thanks very much for the replys.

Yes my car is the turbo model Im 100% shaw of that. I didn`t want to buy the supercharger one.

The startup noise is a whine and not a rattle. The garage said its the VVT timing. Is that the same as the timing chain???

This is the garages 2nd time trying to fix the problem. Dont think they have a clue.

 

[BlackC55]

Thanks very much for the replys. Yes my car is the turbo model Im 100% shaw of that. I didn`t want to buy the supercharger one. The startup noise is a whine and not a rattle. The garage said its the VVT timing. Is that the same as the timing chain??? This is the garages 2nd time trying to fix the problem. Dont think they have a clue.

They need to remove the rocker cover and do a visual inspection of the timing gear.

Or take it to a decent specialist.