M157 cam position sensor part number

[Zak63SB]

Hi All,

Newbie here, first time ever joining a forum although I regularly search on them.
Just bought myself a cls63 shooting brake m157 thankfully with a newer chain.

Just had a look at the cam sensors and one needs replacing for sure. Not sure if this is the right section to post but does anyone know the part number and best place to order from ?

Many thanks

 

[AMGeed]

I'd order one from Mercedes Newcastle. Really quick delivery.
Part number is A276 905 11 00 as shown in the link below.

M 157.981 - SWITCHES,SENDER UNITS,SENSORS > EPC Online > WebAutoCats.com

Mercedes parts catalog. SWITCHES,SENDER UNITS,SENSORS. Spare parts catalog EPC Online.

webautocats.com

 

[AMGeed]

Welcome to the forum
Excellent choice of engine. I miss mine.

 

[Zak63SB]

Thanks for the reply, much appreciated.

On a side note I seen someone recently asked about timing chain on the m157. If it has the new chain, does it automatically have the checked valve ?

 

[AMGeed]

Thanks for the reply, much appreciated.

On a side note I seen someone recently asked about timing chain on the m157. If it has the new chain, does it automatically have the checked valve ?

Not 100%, but I believe it has.

 

[Zak63SB]

Glad I changed these !
I had Oil in the ecu as well, gave it a good clean. Hopefully that’s the end of that and it hasn’t caused anything too serious.

 

[AMGeed]

Glad I changed these !
I had Oil in the ecu as well, gave it a good clean. Hopefully that’s the end of that and it hasn’t caused anything too serious.

I would take the opportunity to investigate if the cam magnet wire blockers for the M271 engine can be fitted to the M157.
I see no reason why they can't provided the plug that attaches the cam sensor to the harness is the same.
These are the fellows I'm talking about. Once fitted, they prevent oil wicking up the harness into the ECU.

Pardon our interruption...

 

[Zak63SB]

I would take the opportunity to investigate if the cam magnet wire blockers for the M271 engine can be fitted to the M157.
I see no reason why they can't provided the plug that attaches the cam sensor to the harness is the same.
These are the fellows I'm talking about. Once fitted, they prevent oil wicking up the harness into the ECU.

Pardon our interruption...

Yes very good idea but at face value looks like it’s a 2 pin and m157 are 3 pins. Need to have a good look for something that could work.

Do you have any video explaining about check valve and tensioner install ?

Been searching everywhere for a decent tutorial or walkthrough but not to much avail. Surely some people must have diy’d it or is there any indys around east midland area that anyone can vouch for.

Thanks

 

[AMGeed]

Here's a video on the check valves

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One on the chain tensioner.

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If you can get to Small Heath Birmingham, MSL Performance can do this work.

Home - MSL Performance

Enhanced Performance and Fuel Efficiency Mercedes Tuning Specialist At MSL Performance, we're passionate about unlocking the full potential of your Mercedes-Benz. As Mercedes Tuning Specialists, we offer a comprehensive range of services tailored specifically to these prestigious vehicles. From...

www.mslperformance.co.uk

No idea on Mercedes specialists in the E Midlands.

 

[ToeKnee]

Yes very good idea but at face value looks like it’s a 2 pin and m157 are 3 pins. Need to have a good look for something that could work.

Do you have any video explaining about check valve and tensioner install ?

Been searching everywhere for a decent tutorial or walkthrough but not to much avail. Surely some people must have diy’d it or is there any indys around east midland area that anyone can vouch for.

Thanks

Mercedes Leicester did my check valves and tensioners with a huge contribution from mercedes. Worked out cheaper than I could buy the parts.

 

[Zak63SB]

Mercedes Leicester did my check valves and tensioners with a huge contribution from mercedes. Worked out cheaper than I could buy the parts.

How long ago was this ? Did it have any requirements - ie did you buy the car from them or have a full Mercedes dealer history ?

 

[ToeKnee]

To be fair it did have full dealer history, the last two at mercedes Leicester. No harm going down and asking though?

 

[Smart320]

Try Mercland in Nuneaton, would definitely recommend them as do others on the forum

 

[feanor75]

Hi All,

Newbie here, first time ever joining a forum although I regularly search on them.
Just bought myself a cls63 shooting brake m157 thankfully with a newer chain.

Just had a look at the cam sensors and one needs replacing for sure. Not sure if this is the right section to post but does anyone know the part number and best place to order from ?

Many thanks

Which year did you get? &Congrats on your purchase btw.
I am looking for a one with newer chain but have seen examples with and without the newer chain in 2013 year, so have been looking at 2014 model year mainly (not that there is a vast choice). The lack of dealer awareness on this issue especially when they take as a PX has also been interesting.

 

[AMGeed]

Which year did you get? &Congrats on your purchase btw.
I am looking for a one with newer chain but have seen examples with and without the newer chain in 2013 year, so have been looking at 2014 model year mainly (not that there is a vast choice). The lack of dealer awareness on this issue especially when they take as a PX has also been interesting.

2014> registered cars should all have the later chain. Just open the oil filler cap to confirm. Most dealers wouldn't have a clue.
In case you aren't aware, the older chain has two thinner links side by side on each link shown in photo below.

 

[AMGeed]

Glad I changed these !
I had Oil in the ecu as well, gave it a good clean. Hopefully that’s the end of that and it hasn’t caused anything too serious.

Found wire blockers that fit the cam sensors on a M157 engine. They are 3 pin same as the M278 engine.
Worth bookmarking in case you want to fit a set. Haven't found any UK supplier

11-20 For Mercedes Benz4.7L Camshaft Position Sensor 3Pin Harness Extension M278 | eBay

Type: Camshaft Position Sensor 3 Pin Harness Extension Kit. 1 Set of Camshaft Position Sensor 3-Pin Harness(4 PCS). -You plug this plug and play wire harness pigtail extensions from the engine harness to the sensors.

www.ebay.com

 

[UkrainianHype]

Found wire blockers that fit the cam sensors on a M157 engine. They are 3 pin same as the M278 engine.
Worth bookmarking in case you want to fit a set. Haven't found any UK supplier

11-20 For Mercedes Benz4.7L Camshaft Position Sensor 3Pin Harness Extension M278 | eBay

Type: Camshaft Position Sensor 3 Pin Harness Extension Kit. 1 Set of Camshaft Position Sensor 3-Pin Harness(4 PCS). -You plug this plug and play wire harness pigtail extensions from the engine harness to the sensors.

www.ebay.com

on top of that there's camshaft adjusters blockers as well : 2711500156, might as well while you are at it !

 

[Zak63SB]

Is that the eBay item number.