yup, very easy.

 

Thanks for the info dmac_S500,
One question, About how much play should there be with the belt? How do you gauge that? I will be doing the same thing this week and want to make sure it's not to tight.

Thanks,
Lesko

 

With the tensioner, I didn't really worry about or check the belt play. It seemed appropriately tight and there is no adjustment to deal with as the M119 belt tensioner is spring loaded. I'm not sure if the M104 system is different. I'm sure there are others on the forum that could give you some more relevant detail.

 

While you're there dmac, can you do me a favour? You have a 98 with a 119 so your car should be very similar to mine. Your engine bay should look thus;

With your MAF positioned somewhere inside the Vee, (between labels 3 and 2). Tell me, if you switch the ignition on, (turn off blower motor, stereo and such), can you hear the MAF buzzing?
Kind of like a louder version of the interior blower aspirator in the headlining but at about 3 times the volume.

 

it's probably ETA thats buzzing,i had doubts about that after rewiring ETA ,when ignition is on you can hea zzzzzzzzzzzzzzzzzzzzzzzzzz,little motor is turning ,stays all the time right?

 

That description is absolutely spot on, may as well take it to bits as I need a new one anyway. Maybe I can repair it. It's unbelievably difficult to get out.

 

HOW DO YOU KNOW YOUR eta NEEDS TO BE REBUILD,do you experience rough idle?

I asked other member with s320 he said his does the same zzzzzzzz

 

AFAIK, this is normal sound for the ETA, with ignition on and un-started motor.
The ETA tries to reset the butterfly valve, and explore its extreme positions.

Mine does it too, but it is most hear-able when filter case is off.

br,
syljua

 

Mine does it for as long as the ignition is on. I have cutting out issues at the moment. Now that I've had a look, can see the wiring is all brittle. Got the MAF off and gave it a good clean. I'll put the whole lot back together later and see what gives.
Never noticed that it was always on before.
By the way does anybody know where the oil temp sensor is located?

 

Gumsie,

I can certainly take a look/listen if that would still be helpful for you. Just let me know how I can help.

Duncan

 

Would be a great help. Had just the ignition on while I used carsoft the other day and that buzzing was there all the while, must have been at least 15 minutes.
Thanks.

 

Gumsie,

I checked this morning and there is a definite whirring, buzzing noise in the MAF area when the key is in the run position with the engine not on. I assume that this is normal as my car is running fine - no codes, no lights.

 

That's great. Does it come to a stop after a while or did it go for quite a while?

 

No it doesnt stop ,just keeps going and going and going....

 

Very nice, thankyou.

 

belt size

Hi, sorry to reopen an old thread

I have been trying to fit a 1992 500se belt and it doesn't fit. First belt was a 8pk2465 specified by the parts shop. This was too wide and seemed short.

Reading the manual it said 2460mm so I ordered a 6pk2460. This is the right width but still seems short, as I can't get it on even with the tensioner full loosened.

Have I got the correct part number or have I bought a dodgy part?

 

It is indeed short. The M119 uses a 6K X 2535. This is the part you need:

1995 Mercedes-Benz S420 Base Sedan - Filters & Belts - Page 3

 

Right, cheers for this. I have not actually been quoted this size by any website. Unlucky I have wasted time.

Fingers crossed I can get it tomorrow.

 

All fitted, 6pk2535 was correct size. Thanks