W210 water coolant sensor

[Stuart K]

Hi

I have a '02 E220 CDI Estate, recently the 'check water coolant' warning has randomly come on (some times a mintue after I start, other times after 30 or so minutes)

I hav checked the water levels and I keep a eye on the temperature and all appears to be fine. I'm guessing the senor has gone (this car has now done over 130K!). Question: Is this easy to replace myself (I'm not very machanically gifted)? Could any one give me some guidance?

Many thanks

 

[recycled]

Just take out the old one and replace it. costs about £10.

http://www.detali.ru/cat/oem_mb2.asp?TP=1&F=202018&M=111%2E920++++++111%2E921&GA=722%2E421722%2E603&GM=717%2E416717%2E417717%2E418&CT=F&cat=44V&SID=50&SGR=015&SGN=01

you need no 11, but that is for a c- class without expansion tank. yours may be different

 

[nick mercedes]

Hi

I have a '02 E220 CDI Estate, recently the 'check water coolant' warning has randomly come on (some times a mintue after I start, other times after 30 or so minutes)

I hav checked the water levels and I keep a eye on the temperature and all appears to be fine. I'm guessing the senor has gone (this car has now done over 130K!). Question: Is this easy to replace myself (I'm not very machanically gifted)? Could any one give me some guidance?

Many thanks

Possibly A2105450024 - £11.63 from your local MB parts dept, best check on your chassis number though.

Easy enough to replace.

 

[Stuart K]

Mine has a expansion tank...

Sorry for the slow uptake, but is the sensor a scew in? Where is it.. I'm trying to take a look at the diagram..

Many thanks

 

[recycled]

it is a screw in. There is a top with 2 wires sticking out that need to come off. the it is a press in and turn left, like a pin bulb type action. it should besta on top of your tank or on top of the rad, beside the opening to pour coolant in

 

[nick mercedes]

Mine has a expansion tank...

Sorry for the slow uptake, but is the sensor a scew in? Where is it.. I'm trying to take a look at the diagram..

Many thanks

http://www.detali.ru/cat/oem_mb2.as...649716.651&CT=F&cat=66G&SID=50&SGR=165&SGN=02

 

[recycled]

here is one for a c220 cdi, no 190 under the expansion tank

http://www.detali.ru/cat/oem_mb2.asp?TP=1&F=203708&M=646%2E962&GM=716%2E649716%2E651&CT=F&cat=66U&SID=50&SGR=165&SGN=02

 

[nick mercedes]

Hi

I have a '02 E220 CDI Estate

A W210 or a W211?

 

[Dieselman]

Must be a W210 at that age.

 

[recycled]

http://www.detali.ru/cat/oem_mb2.as...649716.651&CT=F&cat=66G&SID=50&SGR=165&SGN=02

No 180 in that picture

 

[Stuart K]

It a W210..

 

[Diesel Benz]

Must be a W210 at that age.

I have not followed when the Estate sales started but I've seen S211 cars with a 2002 build date. UK might be different though.

 

[Stuart K]

Yes, mine is the old model.. the W210. I thought the W211 came out in 2003. Any way, the sensor I need to replace is on the bottom of the tank I top up?