Coolant Level Sensor

coventryslk

Senior Member
Joined
Feb 3, 2009
Messages
1,439
Reaction score
87
Age
42
Location
Coventry
Your Mercedes
W204 CDI Sport
I have changed the coolant level sensor a week ago and the light still comes on intermittantly.
Any ideas of loose wires/connections to check? shorting?
I do not want to take it into a garage to sort out.

Matt
 

bigasotonuk

Senior Member
Joined
Nov 14, 2006
Messages
5,331
Reaction score
58
Age
56
Location
Southampton UK
Your Mercedes
C43/55 AMG 1999 / C230K 1997
Hi,
Change the washer bottle switch, due to the way they are wired, when it becomes faulty it puts the coolant level light on.
There not very expensive when i replaced mine it was less than £15.
 

television

Always remembered RIP
Joined
Mar 14, 2005
Messages
164,073
Reaction score
377
Age
89
Location
Daventry
Your Mercedes
2002 SL500, 216 CL500, all fully loaded
was not the car a slk do you have the first 6 vin numbers
 

jibcl500

Senior Member
Joined
Oct 22, 2005
Messages
6,420
Reaction score
9
Age
56
Location
Cambridgeshire
Your Mercedes
CL500,ML55,SLK280
Agree the sensor in the water tank, you can remove it and clean the contact but for the cost of a new sensor and a few cuts its worth replacing.
Does your interior light work ok?
jib
 
OP
coventryslk

coventryslk

Senior Member
Joined
Feb 3, 2009
Messages
1,439
Reaction score
87
Age
42
Location
Coventry
Your Mercedes
W204 CDI Sport
  • Thread Starter
  • Thread starter
  • #5
Thank you Malcolm. Will give you the VIN - Its a 2000 R170 200k


The washer light only comes on when the washer bottle is empty (solved the egg smell - washer fluid didnt mix with stuff already in the bottle and gave off a chemical reaction )

"Change the washer bottle switch, due to the way they are wired, when it becomes faulty it puts the coolant level light on.
There not very expensive when i replaced mine it was less than £15."

So you suggest it is the washer bottle switch?????
It has also been suggessted that it could be the control unit on the electric fan??


Im confused?? Matthew
 

nickid

Senior Member
Joined
Dec 1, 2012
Messages
88
Reaction score
0
Location
coleraine
Your Mercedes
YELLOW LIMITED EDITION 2002 MERCEDES C 230 KOMPRESSOR SPORT WITH 2 TONE LEATHER
mine is in the same boat. both faults washer and coolant and both are full. just bought the car so I am worrying a bit
 
Last edited:

barose

Senior Member
Joined
Dec 9, 2008
Messages
86
Reaction score
0
Location
Peterborough
Your Mercedes
E350 2011 Obsidian Black, CLS350 2013 Silver
Washer fluid low error message

My CL600 just started giving me this message (full reservoir of course), now it is on all the time. It hijacks my message centre can this be removed with the reset button whilst driving.

I drained the tank and refilled it, pulled off the sensor wire and refitted it, to no effect. How do you replace the sensor as the opening is too small for a hand. Any suggestions and help would be appreciated
 

television

Always remembered RIP
Joined
Mar 14, 2005
Messages
164,073
Reaction score
377
Age
89
Location
Daventry
Your Mercedes
2002 SL500, 216 CL500, all fully loaded
The header tank and washer tank sensors are resistive and wired in series, it could be either one
 

nickid

Senior Member
Joined
Dec 1, 2012
Messages
88
Reaction score
0
Location
coleraine
Your Mercedes
YELLOW LIMITED EDITION 2002 MERCEDES C 230 KOMPRESSOR SPORT WITH 2 TONE LEATHER
ive just changed my coolant sensor and it fixed both faults
 

You lost your key ? Or maybe you need a spare! Your vehicle imobilliser does not respond anymore? WE CAN FIX THEM ALL !! Mobile ! Save Time and Increase Profits With us !
Top Bottom