I Have a C200 Kompressor, W203, 2003 Model 271 Engine, What is the black electronic cylinder that fits into the radiator water bottle compartment, as the guys at Mercedes think I'm talking rubbish when i ask for that part, they have no idea what i'm talking about.

Asked by Dec 12, 2014 at 04:49 PM about the 2003 Mercedes-Benz C-Class

Question type: Maintenance & Repair

Black unit is about 50mm indiameter and has just a negative and positive wire run
together in loom.

8 Answers

23,905

Engine coolant temp sensor? http://www.partsgeek.com/gbproducts/WC/6328-01047161.html?utm_content=YN&utm_term=2002-2007+Mercedes+C230+Coolant+Level+Sensor+APA%2FURO+Parts+W0133-1628172+02-07+Mercedes+Coolant+Level+Sensor+2003+2004&fp=pp&gbm=a&utm_source=google&utm_medium=ff&utm_campaign=PartsGeek+Google+Base&gclid=CKGNwv7UwcICFUEV7Aod_DgA3A

Hi Mark Thanks, but this is the switch mounted into water radiator bottle, the unit i am referring to fits in the moulded plastic brackets on the radiator water bottle.

I've checked other vehicles but they do not have this, they do not even have the wire loom connection for this, mine has the wiring which i assume the mechanic has ripped the unit from the loom.

If you check the radiator water bottle, there are two curved moulded brackets that hold this unit, but no one can tell me what it's supposed to hold.

If you check the water tank Pic on parts geek, its the brackets directly below the pressure relief nossle.

23,905

Is it the one with the green arrow?

3 out of 3 people think this is helpful.
Best Answer
23,905

If it is the green arrow its your aux. water pump. http://www.pelicanparts.com/techarticles/Mercedes-W203/WATER-Coolant_Expansion_Tank_Replacement/WATER-Coolant_Expansion_Tank_Replacement.htm

1 out of 1 people think this is helpful.

Yes, But there are no water pipes connected to this unit, it's entirely black, Cylindrical in shape same size as pic, fits in same position and had an electronic pc board inside, saw this when visiting mechanic one day while he was replacing gearbox, radiator etc.

Your Answer

Add photo

Related Questions

  • WHY WONT IT START 40 answers

    HEADLIGHTS WORK. WHEN KEY IS PUT INTO IGNITION, NO LIGHTS ARE DISPLAYED ON DASHBOARD. NO ENGINE SOUND. COULD IT BE THE STEERING LOCK. BATTERY IS OK. MERCEDES BENZ C220 CDI

    2007 Mercedes-Benz C-Class

    -

    Maintenance & Repair

  • 1997 mercedes steering locked up !! I had to be towed.. what can i do? 48 answers

    The steering locked up ... can't move wheels or start it...

    1997 Mercedes-Benz C-Class C 280 Sedan

    -

    Maintenance & Repair

  • Driverside Window Button Popped Off. 7 answers

    I have a 2004 Mercedes C240. The driver side window button popped off. The window still works and goes up and down, just the button broke off. I called a shop and they want to charge me $300 or more s...

    2004 Mercedes-Benz C-Class C 240 4MATIC AWD Sedan

    -

    Maintenance & Repair

  • Engine died and couldn't restart until refueled 7 answers

    Mercedes C180 2006 Auto Petrol- I am having a weird problem (or may be its not weird) with my Mercedes C180 Petrol. The engine switched off when i stopped at a traffic light and just couldn't start ...

    2006 Mercedes-Benz C-Class

    -

    Maintenance & Repair

  • Is a 2002 Mercedes Kompressor with 42K miles a good buy for $9,995? 4 answers

    I was thinking of purchasing a 2002 Mercedes Kompressor with 42,500 miles for $9,995. Is this a good buy or should I be worried about the age of the car and why it has such low miles on it? What can...

    2002 Mercedes-Benz C-Class C 230 Supercharged Hatchback

    -

    Shopping & Pricing

C-Class

Looking for a Used C-Class in your area?

CarGurus has 30,565 nationwide C-Class listings starting at $1,000.

ZIP:

Search Mercedes-Benz C-Class Questions

Mercedes-Benz C-Class Experts

#1 Lorne Grandison
Lorne Grandison
Reputation 4,500
#2 PPC123
PPC123
Reputation 3,130
#3 dandyoun
dandyoun
Reputation 2,310
View All

Related Models For Sale

Used Mercedes-Benz E-Class
474 Great Deals out of 22,559 listings starting at $1,999
Used BMW 3 Series
1,060 Great Deals out of 34,784 listings starting at $900
Used Mercedes-Benz S-Class
168 Great Deals out of 6,444 listings starting at $2,500
Used BMW 5 Series
505 Great Deals out of 14,579 listings starting at $1,375
Used Audi A4
200 Great Deals out of 10,833 listings starting at $1,333
Used Mercedes-Benz CL-Class
28 Great Deals out of 601 listings starting at $4,988
Used BMW M3
62 Great Deals out of 1,886 listings starting at $6,999
Used Mercedes-Benz M-Class
175 Great Deals out of 5,163 listings starting at $2,980
Used Ford Mustang
331 Great Deals out of 45,576 listings starting at $2,000
Used Chevrolet Camaro
135 Great Deals out of 35,104 listings starting at $1,995
Used Honda Accord
680 Great Deals out of 82,245 listings starting at $500
Used Mercedes-Benz CLK-Class
37 Great Deals out of 1,442 listings starting at $2,495

Used Cars For Sale

2017 Mercedes-Benz C-Class For Sale
14,371 listings starting at $38,993
2016 Mercedes-Benz C-Class For Sale
121 Great Deals out of 3,272 listings starting at $25,699
2015 Mercedes-Benz C-Class For Sale
35 Great Deals out of 1,218 listings starting at $20,921
2014 Mercedes-Benz C-Class For Sale
98 Great Deals out of 3,098 listings starting at $13,980
2013 Mercedes-Benz C-Class For Sale
72 Great Deals out of 2,109 listings starting at $9,999