Need help please!
Thread Starter
Newbie
Joined: Jan 2011
Posts: 6
Likes: 0
w203
Need help please!
Hi, I just replaced the coolant on a 02 c240 with the coolant from the dealer. After replacing the coolant the motor starting smoking a little. I turned the heat full blast and notice the heater only works on full blast on 80. Any other setting the heat doesn't work and I get cool air. The smoke seemed to stop, but the motor is very hot. But the car temperature gauge is around 85-90. Can anyone help me why the heat only works full blast, i would really appreciate it thank you so much.- jster
Super Moderator
Joined: Jun 2008
Posts: 19,942
Likes: 191
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
You must have air in the system if the auxilliary coolant pump can't prime which is why the heater won't work.
There is a coolant drain on the bottom of the block #71 but you need to get air out at the top of the engine.
There is a coolant drain on the bottom of the block #71 but you need to get air out at the top of the engine.
Thread Starter
Newbie
Joined: Jan 2011
Posts: 6
Likes: 0
w203
Not to be a pain but how do you suggest I go about getting air out at the top of the engine? Is there a way that this can be done without draining the coolant, I just put 2 gallons of Mercedes coolant in yesterday i drained it from the bottom of the radiator plug, the red plug. Thank you very much.- jster
Trending Topics
MB World Stories
The Best of Mercedes & AMG
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
Mercedes Teases Updated EQS With Steer-By-Wire and a Yoke
Verdad Gallardo
