Hello guys

I do have an CLS 55 AMG 2006 and have the usual noise from the oil pump when the oil isnt 100% warm.

So i gona change it on saturday. And hope that the noise gona disappear.

Could someonw help me out ? I need information how much the torgue is for the oilpumpbults ?


Maybe the hole how to do information from Epc ?

Iam Really sorry for my bad english .

Really thankful for any help i can get.

 

you will have to remove the whole engine cradle to drop the oil pan.
WIS calls to remove the whole motor from the top
1. Bolts on the oil pan 10Nm
2. Bolts connecting oil pump to crank case 20Nm

 

You can probably do it without removing the engine. Unbolt the engine mounts and use a hoist to lift the engine up. See if that gives you enough room. I've had the oil pan off to reseal it without removing the engine. It wasn't a CLS but worth a try. If not, pulling the engine isn't as hard as it sounds.

 

I have now changed the oilpump to a new one with out lifning the engine. it was hard but i did it.

But guys, it sounds exactly as the old one, wining and noisie, thats beacuse i think its a doubble shaft oilpump with is unussal on a normal car.

Any one who have a noise oilpump dont change they sounds like that.

 

That's because I think it's not the oil pump at all, but rather the transmission pump.

 

But the sound comes from the front of the engine ?

Or are the sound traveling from back to the front of the engine ?

 

I got below my car once and used a screw driver to pin point the sound and to me it sounded like it came from the rear of the engine/front of the tranny.

 

I do have an rebuild tranny beacuse the contact was leaking for maybe 1 year before i buy the car. And the oil pump for the gearbox is quiet as the night.

But the oilpump is noisy and that one is new, the sound is really scary but it over 1400-1500 rpm as many says here.

What i did see on the oil pump is that its a double pump in one body. Double shafts in it.

 

I mentioned in another post that I heard a Porsche Cayenne start and it had the same whine as my AMG during start up. I actually thought that it was another AMG starting and was surprised to discover it was a Porsche. I wondered if there were any shared parts (pumps) between Porsche/AMG?

 

As i said few months ago i will say again;

Beleave me, its the engine oil pump that is noisy! I know, because i swap my old E55 113.990 engine with new S55 113.991 engine wich have 2 gears oil pump (compare to E55 6 !!! gears oil pump). So i had to swap oil pumps also (and between that i explore all parts of both oil pumps).

20.000 km latter i discover that with lower viscosity engine (lower then mobil 0W-40) oil pump noise almost 100% dissapear. So i use Castrol SLX Professional 0W-30 engine oil and with that oil noise is there only at really cold start for cca 1 minute. After that it totaly disapear. And not only that, but even oil pressure is much better with SLX compared to M1 0W-40!!! On top of that i get better fuel millage and cleaner engine interior with that oil compared to M1. So for me SLX is total winner compared to M1. And i use it for almost 7 years in all my cars (and i have/had a lot of them) with great succes.

Try with different engine oil (maybe even different 0W-40 will work) and noise will dissapear. 100%.

EDIT: I also have slight tranny oil pump noise at colder weather. And is different then engine oil pump noise.

 

Okej sounds good, thats why in the service book it always have 0w-30 oil in it. And i told my self what a crap workhop who have done the service, But now it seems that they knowed about the oil problem .

Okej do you think that the oil pump have been bad beacuse i have used 0w-40 m1 ??? I have droven 4500 km until now.

Here in Sweden we dont have slx proffesional we do have Egde 0w-30 FST ? Does this one work ?

 

Noisy oil pump is not bad. Its just work noisy with M1 engine oil.
So nothing wrong with pump.
Yeah, Castrol edge professional 0W-30 or Castrol edge sport 0W-30 will work just as good as Castrol SLX Professional Longtec 0W-30. In the matter of fact those 2 oils are just different names for same (SLX) oil. Just make sure to NOT buy SLX Longlife. This oil is good at long intervals and.not so good at oil film pressure/general lube action.

 

I have now changed the oil into Castrol edge 0w-30 fst. And like you guys says, That knocking noise diseappear but you still have a little wining noise wich is really okej, SO iam glad you did respone my thread. But i notic something about the hydraliv lifters. They sems to work harder with 0w-30 ?

I wondering, are there anyone who tried another 0w-40 insted of the Mobil 1

Iam thinking to dirve a while with 0w-30 and try another 0w-40 next time

The brands iam thinking about is

Castrol egde 0w-40
Liquid molly 0w-40
Pennzoil 0w-40

Some one who can recomend any of these brands above ?

 

Today i have tried Castrol Edge 0w-40 Fst, And its less noise with this oil. Or should i say wining sound, So guys i have tried Mobil 1 0w-40, Castrol 0w-30 Edge Fst And Castrol Edge 0w-40 Fst. The winner if i can decide is Castrol 0w-40 Fst. Like the 0w-30 it sounds a little in cold start but then the sound Disepear I wanted to inform every one here maybe ut help somone.

 

Hello,
Was wonder: Where can I buy Castrol SLX Professional 0W-30 oil for Mercedes cls55?

I have same whining noise and would like to try out with Castrol but can't find it. I'm in Ohio usa.

 

I would NEVER user a 30weight oil in any performance engine... I would encourage everyone to NOT follow those advices, especially if the car is driven often at its limits.

 

Have had that noise for a long time and its only bothersome when cold...or very cold out. Different oil grades does make a difference but otherwise its always there. PIA !!