C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

05' C320 Engine Block Heater ???

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old May 13, 2011 | 01:19 AM
  #1  
Benc320's Avatar
Thread Starter
Newbie
 
Joined: May 2011
Posts: 6
Likes: 0
05' C320 Engine Block Heater ???

I was wondering if anybody knows whether these models came with engine block heaters? I have a ridiculous problem with the car !

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
Reply
Old May 13, 2011 | 02:06 AM
  #2  
Moviela's Avatar
MBWorld Fanatic!
20 Year Member
Photogenic
Photoriffic
 
Joined: Jan 2005
Posts: 2,848
Likes: 15
From: Orange County
2005 C Wagon (No snickering please!)
At those temperatures the battery needs to be in top condition too. The engine block heater is part number 900 203 48 95. There are several sponsors of this forum that can supply the heater, cable, and protective cap.
Reply
Old May 13, 2011 | 03:47 AM
  #3  
Benc320's Avatar
Thread Starter
Newbie
 
Joined: May 2011
Posts: 6
Likes: 0
Yes, indeed the battery is 5 years old, I don't think it has been changed since 2005.
*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 ?
Reply
Old May 13, 2011 | 07:04 AM
  #4  
FrankW's Avatar
MBworld Guru
20 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: Apr 2002
Posts: 22,058
Likes: 19
From: Diamond Bar, CA
W206 PHEV AMG
how is this the car's problem??? -20 celsius and you wonder why the car won't start? most cars won't start without a block heater...

and the answer to engine block heater is NO. they are accessories.
Reply
Old May 13, 2011 | 09:43 AM
  #5  
Glyn M Ruck's Avatar
Super Moderator
MBWorld Ambassador

 
Joined: Jun 2008
Posts: 19,942
Likes: 192
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Reply
Old May 13, 2011 | 10:51 AM
  #6  
Glyn M Ruck's Avatar
Super Moderator
MBWorld Ambassador

 
Joined: Jun 2008
Posts: 19,942
Likes: 192
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Some Canadian cars had block heaters as OE.
Reply
Old May 13, 2011 | 11:09 AM
  #7  
Benc320's Avatar
Thread Starter
Newbie
 
Joined: May 2011
Posts: 6
Likes: 0
I just spoke to my mechanic with regards to this problem.
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 ?
Reply
Old May 14, 2011 | 02:19 AM
  #8  
samaritrey's Avatar
Super Moderator
15 Year Member
 
Joined: Mar 2007
Posts: 5,295
Likes: 22
From: VA
THE C350
Why would you even go outside in the temperature let alone want to drive in it?
I would say engine block heater and go from there it is not expensive at all.
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

Six Gift Ideas Your AMG Loving Dad or Grad Will Cherish

 
story-1

7 Craziest Things AMG Gas Ever Built

 Verdad Gallardo
story-2

New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

 Verdad Gallardo
story-3

6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

 Verdad Gallardo
story-4

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

 Verdad Gallardo
story-5

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

 Verdad Gallardo
story-6

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-7

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
story-8

Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

 Verdad Gallardo
story-9

Mercedes EQS Gets A Major Update: Everything You Need to Know

 Verdad Gallardo
Old May 14, 2011 | 04:19 AM
  #9  
Glyn M Ruck's Avatar
Super Moderator
MBWorld Ambassador

 
Joined: Jun 2008
Posts: 19,942
Likes: 192
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Your ENGINE temp sensor might be bad. If it send crap readings to the ECU you will not get adequate mixture enrichment for starting.
Reply
Old May 14, 2011 | 01:41 PM
  #10  
Benc320's Avatar
Thread Starter
Newbie
 
Joined: May 2011
Posts: 6
Likes: 0
Originally Posted by Glyn M Ruck
Your ENGINE temp sensor might be bad. If it send crap readings to the ECU you will not get adequate mixture enrichment for starting.
Im not a a very mechanical person, but Im assuming that EBH has nothing to do in this situation...Its more ECU problem or a sensor problem...

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.
Reply
Old May 14, 2011 | 01:54 PM
  #11  
Song's Avatar
Member
 
Joined: Dec 2009
Posts: 76
Likes: 1
Mercedes C230K 05
Originally Posted by Glyn M Ruck

+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
Reply
Old May 14, 2011 | 03:17 PM
  #12  
contact148's Avatar
Senior Member
 
Joined: Jan 2010
Posts: 456
Likes: 4
From: Canada
2003 c240 4matic wagon
see this thread for a pic of the block heater location https://mbworld.org/forums/c-class-w...ml#post4672720

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.
Reply
Old May 14, 2011 | 05:04 PM
  #13  
Glyn M Ruck's Avatar
Super Moderator
MBWorld Ambassador

 
Joined: Jun 2008
Posts: 19,942
Likes: 192
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Originally Posted by Benc320
Im not a a very mechanical person, but Im assuming that EBH has nothing to do in this situation...Its more ECU problem or a sensor problem...

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.
This has nothing to do with the block heater.

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.
Reply
Old Jun 28, 2011 | 11:49 PM
  #14  
Benc320's Avatar
Thread Starter
Newbie
 
Joined: May 2011
Posts: 6
Likes: 0
Originally Posted by Glyn M Ruck
This has nothing to do with the block heater.

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.
Where is the Engine Temperature Sensor located ? Would I be able to buy an aftermarket one and replace it myself, or does it have to be replaced @ mechanic or Mercedes Dealer ?
Reply
Old Jun 29, 2011 | 11:13 AM
  #15  
Glyn M Ruck's Avatar
Super Moderator
MBWorld Ambassador

 
Joined: Jun 2008
Posts: 19,942
Likes: 192
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
You can replace yourself. See 29 on the diagram. I hope this is the problem but you have to try things. Please buy from a known seller of MB parts like RMeuropen etc so you get the right thing. It does not have to be a dealer.

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.

Attached Thumbnails 05' C320 Engine Block Heater ???-m112-temp-sensor.jpg  
Reply
Old Jul 31, 2011 | 09:51 AM
  #16  
Benc320's Avatar
Thread Starter
Newbie
 
Joined: May 2011
Posts: 6
Likes: 0
Another Engine Check came up, I brought my car to a local dealership & they advised me that Crankshaft Position Sensor is bad. Generally speaking with regards to this post, could this sensor be the initial reason my car doesn't start in the winter ?

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.
Reply

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 01:21 PM.

story-0
Six Gift Ideas Your AMG Loving Dad or Grad Will Cherish

Slideshow: Six gift ideas your AMG loving dad or grad will cherish.

By | 2026-06-03 17:26:18


VIEW MORE
story-1
7 Craziest Things AMG Gas Ever Built

Slideshow: Sometimes AMG builds fast sedans. Other times, it builds twin-turbo V12 land missiles and six-wheeled off-road monsters.

By Verdad Gallardo | 2026-05-26 17:59:58


VIEW MORE
story-2
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

Slideshow: Mercedes-AMG's new electric GT 4-Door Coupe trades combustion for software, synthetic noise, and more than 1,100 horsepower.

By Verdad Gallardo | 2026-05-20 20:08:15


VIEW MORE
story-3
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-4
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-5
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-6
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-7
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-8
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-9
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE