05' C320 Engine Block Heater ???
Every winter temperature falls under -20 C. I cant start the car. The key turns, starts of the automatic starter, "wants to start" and "Fails" !
I figured it may be due to the weather. :S
Now I went to research that an engine block heater may be the solution ?!
Cant wait to hear your responses & get this babe dressed in new rims for the summer



*But mechanic has checked the battery and said it is in good condition.
Do 2005 C320 suppose to come with EBH ?
If no, what is the reason for this absent ?
I want to know due to the nature of the problem, should I fix it or should I get rid of it ?
and the answer to engine block heater is NO. they are accessories.
He is say, when he checked the car the computer showed him a lower temprature then it actually is. For example, if the outside winter temprature is at -4, the computer shows its -20...for some odd reason...so it gives out a wrong temp. at about 16C less then the actual temp.
My concern is that temprature in my area does not fall under -20 very often and even when its -4 the car does not start ?
Any advice, or did anyone exprience the same problem ?
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I already changed, Air flow Sens, all my spark plugs, because as you said the wrong mixture of gas causes the spark plugs to over flow with gas.
How would you recommend to go about this ?
Appreciate your help.
+1
many of merc in Canada have this funny plugs sticking out at the grill area. you may want to look around in the engine bay for it. Some don't come with the wire. Easiest check is to drive to a dealer and ask them. Generally no charge for this quick look.
https://mbworld.org/forums/c-class-w...-question.html
if you have the cap (black plastic) where my plug is take it off I used a long flat screwdriver to tap it off it was tight MB wanted like $90.00 for the cable I took a pic of the fitting went to napa and got a cable for 22.00
change your temp sending unit through
Last edited by contact148; May 14, 2011 at 06:29 PM.

I already changed, Air flow Sens, all my spark plugs, because as you said the wrong mixture of gas causes the spark plugs to over flow with gas.
How would you recommend to go about this ?
Appreciate your help.
The engine temperature sensor that feeds you dash temp gauge also feeds the ECU to tell it what the engine temperature is. If the temperature is low it richens the mixture for starting & warm up. It is doing the same thing electronically via the injection system as a manual choke does on a car with a carburettor.
I recommend you change the temperature sensor.
The engine temperature sensor that feeds you dash temp gauge also feeds the ECU to tell it what the engine temperature is. If the temperature is low it richens the mixture for starting & warm up. It is doing the same thing electronically via the injection system as a manual choke does on a car with a carburettor.
I recommend you change the temperature sensor.

You should also get hold of an OBDII scanner & see if the car is storing any codes. Plug is under the steering column behind a rectangular flap.
What Im thinking is that it (sensor) was bad in the winter but still managed to do its job and satisfy the ECU. Thats why it never showed the Crank sensor at fault, but now it the other day I was at a driver threw and the car just died on me (shut off). Which probably meant that the sensor is really bad and the ECU doesnt take the right reading ?? :S
I am not sure about my philosophy lol, but I would appreciate your comments.
Thanks.





