E55 W211 supercharger problem

[Pagey]

Hi

Perhaps the more knowledgable on this forum can help.

I have a E55 amg w211 and the supercharger does not work. Is was making a squeak sounded like bearing. The car has absolutely no power any longer will not even pull up a hill.

Your thoughts and suggestions are greatly received

 

[SavMan]

Hi

Perhaps the more knowledgable on this forum can help.

I have a E55 amg w211 and the supercharger does not work. Is was making a squeak sounded like bearing. The car has absolutely no power any longer will not even pull up a hill.

Your thoughts and suggestions are greatly received

Is the noise coming from the supercharger pulley/clutch or the from within the supercharger itself. Do you have access to STAR to check if the supercharger clutch is engaging?

 

[Pagey]

Hi savman

Yes it's been on star got a ream of paper printed off but garage said nothing really of any interest to report. What sort of error code would it flag up and I will double check. The squeak is coming from the front bearing or idler pully. When I bought the car a few weeks I was told it had just been given all new drive belts but now on closer inspection I think not. I've done a lot of searches on various forums regarding this matter and there a lot of talk about changing the bearing on the clutch.

Regards

 

[SavMan]

I was looking more for whether they physically engaged the clutch from within STAR.

To check the idler or tensioner as they sit quite close to each other remove the outer belt and feel both of them for movement and spin them by hand.

Was there no power when the garage looked at it or did this happen afterwards?

 

[AndyPCD]

Im sure there is an actual guided test/actuation to test the operation the the kompressor clutch via the star machine.

Was the garage you took it to a merc specialist

 

[A1EK]

Hi

Perhaps the more knowledgable on this forum can help.

I have a E55 amg w211 and the supercharger does not work. Is was making a squeak sounded like bearing. The car has absolutely no power any longer will not even pull up a hill.

Your thoughts and suggestions are greatly received

Hi

With your W211 can you see the Supercharger pulley wheel from the engine? I have a W208 CLK Kompressor and if I look down to the left of the engine I see the pulley wheel. You may find that on the outer edge of the pulley wheel there is a seperate disc a bit like a cover with 3 bolt heads showing. At Idle this disc should be stationary and only when you rev the engine to about 2300 revs the electro-magnet engages and locks the disc which in turn enables the S/C. (It may help if you put some white paint on the disc to see if its spinning.)

What concerns me though is that you said that as its not working you cannot even pull up a hill? With your E55 even without a S/C you should have no problems at all with power, it just wont be as strong as before with the S/C not working thats all.?

If your Merc guys knows the Star Diag properly he can go to the menu that engages and disengaged the S/C Clutch to watch it work. IF its failed and is not functioning then to buy a new clutch could be an option , but I know for my CLK they were expensive and very hard to find.

IF your S/C disc I mentioned is spinning at idle and all the time, then it could be your dump valve (Air by-pass valve) is faulty that controls the boost back into the engine. This in turn can be a result of an ECU fault.

 

[Pagey]

A1ek

The black disc spins at idle on my car. Sounds like an air leak I'm very familiar with turbo charged cars but but sc ones. Suppose they are the same positive pressure engines at the end of the day I will check for leaks and go from there.

Where do I buy the star software? I did not know it was so advanced that procedures can be simulated with this software.

 

[AndyPCD]

To buy star software your looking a couple of grand for a decent version.

Best thing i would suggest is find a decent local indy and get your car booked in with them.

 

[Pagey]

A new development this evening started car from cold and took for drive it went like a rocket from start as it should. As soon as engine got up to temperature again supercharger stopped working. Could it be the diaghram in bypass valve at fault when it gets hot?

Star software 2k bargin! Any decent garages in Kent that could be recommended please?

 

[AndyPCD]

I would say it is more than likely the charge cooler pump has failed allowing the intake air temps to get too high.

Fitted one to a customers car on wednesday.

What part of kent you in

 

[Pagey]

Andy

I'm in walderslade, Chatham.

Regards

 

[AndyPCD]

Kent is an area i cover. Your about 55 miles from me.

 

[flango]

Hi



What concerns me though is that you said that as its not working you cannot even pull up a hill? With your E55 even without a S/C you should have no problems at all with power, it just wont be as strong as before with the S/C not working thats all.?

I agree I have driven a few supercharged cars with failed chargers including the E55 you can tell the charger is not working and its down on power but still has plenty left as does the 230k and all the other K cars, not sure the charger is the problem here as without it the air just has a bit of a tortuous route into the engine

 

[Alps]

id tend to agree with Andy, charge cooler pump.

 

[A1EK]

I agree I have driven a few supercharged cars with failed chargers including the E55 you can tell the charger is not working and its down on power but still has plenty left as does the 230k and all the other K cars, not sure the charger is the problem here as without it the air just has a bit of a tortuous route into the engine

I agree, like you said it just feels a little sluggish and you have to put your foot down further but the power is still plenty just not 'Sling-shot' power.

 

[AndyPCD]

The problem is with this engine is if the iat goes to high it starts to dump extra fuel into the cylinders to aid cooling them down and this causes the engine to bog down and make it feel really slow.

 

[AndyPCD]

When it lack power has the intake air temp been check to see what it is.

 

[flango]

The problem is with this engine is if the iat goes to high it starts to dump extra fuel into the cylinders to aid cooling them down and this causes the engine to bog down and make it feel really slow.

As do most forced induction cars, I agree it bogs down but it would still get up a hill it doesn't kill the performance completely, I agree its probably the charge cooler pump though but I've never known the failure to be as dramatic on performance as in the OP

 

[Abbaso]

Sorry for not introducing myself on the newbies. But just a word to the thread starter these guys know it all. This forum had sorted my supercharger problem. I drive a c230 k w202. And after changing the cam sensor she's boosting all day. Thanks Flania for leading me into the cam sensor direction

 

[b1g1an]

On a slight tangent, people keep talking about hearing the whine when it kicks in but I've never heard/noticed anything.

I definitely notice it goes like stink along with the glorious noise from the exhaust, as do the missus and the kids , and can't imagine I'm missing a whole load of power so is it just my old and abused ears?