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Old 12-18-2002, 02:33 PM   #1 (permalink)
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Date registered: Aug 2002
Vehicle: 300 GEL (463)
Location: UK
Posts: 38
Overheating on '93 300 GEL

Hi,

This is my first post in a while, so please be gentle.

I've been the proud owner of a '93 300GEL for over 3 years and have seldom had a problem with my car. Recently i discovered that the engine would overheat, to a point that in excessive traffic (something common in London, UK) i would have to find a safe place to stop and wait for half hour for the car to cool down before continuing my journey. Luckily, this rarely happens in the winter!

I've been informed that the issue surrounding the over heating is common for this car, and usually a reverse flush of the radiator might sort out any problems.

Basically, i'm looking for advice before taking it to my local garage, as i don't want to end up takign the hefty option of replacing parts, unless necessary.

Also, if any UK drivers know of any garage in the UK other than MB and Caversham Motors which may have knowledge of a G Wagen, that would much appreciated.

I certainly don't want to look to replace the car as i've never had so much fun driving.

Finally, i would like to say thanks to all the regulars here who keep me informed and inspired with their experiences and adventures in G Land.. there are a number of silent viewers to this board (like myself) who are constantly amused with the topics. Thanks again in advance for any help.

Madferrit!
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Old 12-18-2002, 11:02 PM   #2 (permalink)
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Vehicle: W463, 300GE
Location: Remscheid, Germany
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Re: Overheating on '93 300 GEL

Quote:


Madferrit!

First of all I do not think that the Gasoline Engine has problems with overhaeting. Not that Modelyear.

Check the thermostat if it work proper.
Another point could be the visko-blower.

Are you sure that you have an overheating problem, or is you sensor maybe defect ?

Mit freundlichen Grüssen

Klaus


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Old 12-19-2002, 12:29 AM   #3 (permalink)
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Vehicle: 300 GEL (463)
Location: UK
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The car is definately over heating as i can see steam pouring out of the water reservoir...


The car is definately over heating as i can see steam pouring out of the water reservoir. In my car it is under the bonnet in front of the drivers side. Keep in mind that my car is Right Hand Drive.

Another problem i forgot to mention is the fuel economy. On a full tank i only get a return of about 240 Miles. I would have thought that i should get 300 miles plus but i'm stumped what is causing the lack of economy.

Most of my driving is local or city driving.
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Old 12-19-2002, 01:34 AM   #4 (permalink)
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Vehicle: 1988 300 GD STT LWB
Location: Tønsberg, Norway
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Overheating

I assume that the engine in your G is the 12v M103 3 litre petrol engine. It is inherently bulletproof so the chances of the source of the problem being outside of the engine itself are fairly good. Check the radiator system, fan, and the coolant/water ratio. If you`ve been offroading with your G, check for mud, debris and whatnots in the radiator windings. A friend of mine had his car overheating due to thousands of pine needles clogging up the radiator windings.
You dont really have to use a G specialist for debugging on a M103. Just find a good old MB mechanic, and note the word "mechanic". A 17 year old MB diagnostics operator wont do you much good. The M103 actually requires spanners [:D]

One potential problem with the M103 is that excessive "smalldriving" can cause it to choke with soot and black sludge. Give it the occational motorway run with high revs over long distances. Do that once in a while and you`ll burn out some soot deposits.
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Old 12-19-2002, 02:27 AM   #5 (permalink)
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Vehicle: 230GE,300TE24,CLK200
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Re: Overheating on '93 300 GEL



Sorry To hear about your overheating problems. Can't really help other that to mention that my local MB dealer - Patons of Carlisle - are very good with my G, but I suspect that they may be at the wrong end of the country for you.

I would however like to echo your sentiments concerning silent viewers. I wholeheartedly agree. I don't think I could get through the day without my regular dose of G. Is that sad or what?[:I]
I would also like to take this opportunity and extend to Dutch, Brent, Mike G, The Thomas's, (all three)Gollygwagen, Arnd, Daniel, mserpe, Hipine, 500, 300ge, Tom A-G, Jimmy, Alex500, Greg S, Tajaerand, Callme_Bwana, Ericmeury, Roly, Scott uk, Madferrit, Caferacer,Tomo, JRW, Vajrainc, Valentino, Captnpete, mmolina, Douglas Dees, Ed Mclass Rick, RezaH, Sjtymko, Jedway, TMV, pjotoole, Phil et al. (apologies for ommissions)and indeed any posters and viewers of this board alike, a Very Merry Christmas and a Happy New Year. A good community indeed. I feel like I almost know you all.
[:)]
P.S.
I post this somewhat early as this is probably the last chance I'll get to do so. My busy time of year - I'm a Butcher.

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Old 12-19-2002, 11:35 AM   #6 (permalink)
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Re: Re: Overheating on '93 300 GEL

Quote:

I would also like to take this opportunity and extend to Dutch, Brent, Mike G, The Thomas's, (all three)Gollygwagen, Arnd, Daniel, mserpe, Hipine, 500, 300ge, Tom A-G, Jimmy, Alex500, Greg S, Tajaerand, Callme_Bwana, Ericmeury, Roly, Scott uk, Madferrit, Caferacer,Tomo, JRW, Vajrainc, Valentino, Captnpete, mmolina, Douglas Dees, Ed Mclass Rick, RezaH, Sjtymko, Jedway, TMV, pjotoole, Phil et al. a Very Merry Christmas and a Happy New Year. A good community indeed. I feel like I almost know you all.
[:)]
Same to you and and the others..

@madferrit,

Fuel consumption :

going my 300GE (SWB)
city :
16,5 Liter / 100 KM on normal Street tires (225/75/16)
17,8 Liter/ 100 KM on MT 235/80/16

Overland :
- 1 to 1,5 Liter

Wintertime : add one additional Liter

So latest yesterday :
MT, City, Overland, Standheating : 18,7 Liter/100KM which comes to 30 liter for the 100 Miles if I convert it correct.

with 95 Liter -> you'll end up with something above 300 Miles (1Mile= 1,609 KM) so you are right.

Do you have th original tires on or did you change and forget to change the ratio on the Spedometer ?

I know this wont help you with overheating, but could be the answer for your fuel consumption.

Mit freundlichen Grüssen

Klaus

an additional Idea. Did you ever run fresh water through your radiator ? to remove the old mud ??



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Old 12-19-2002, 12:19 PM   #7 (permalink)
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Happy Holidays to all!


David

I couldn't have said it any better! Happy Holidays to all!

Tom V and my family
[:)]
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Old 12-19-2002, 02:32 PM   #8 (permalink)
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Date registered: Aug 2002
Vehicle: 300 GEL (463)
Location: UK
Posts: 38
Fuel Economy!

Hi again.

I changed my wheels last year, got the 2002 g500 wheels and tyres on my car. I know the wheel size is larger, but i have to admit i didn't take into account if i needed to have any change done to my speedo. Actually come to think of it, neither did my mechanic.

With regards to the overheating. Many thanks for all the advise given so far. One basis for me buying the car i have is that it is solid and can handle a beating. I was fortunate that when i bought mine a MB garage had just completed the complete engine refit with a brand new engine. As it happens, i bought the car with the new engine having only travelled some 200Miles! I've not covered 50,000 miles in 3 years and they have to be best driving i have ever done.

I've located a local mechanic who has some 15 years experience from a MB dealer as a chief mechanic. I'm due to see him in a week so can see what he will suggest.

Yet again the advise given here has been fantastic. Thank you all, and seasons greetings to you all.

Madferrit

ps.. hope to get a pic posted sometime soon.

1992 MB 300GEL
1992 MB 500E
1991 BMW Z1
1993 BMW M5
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Old 12-20-2002, 05:37 AM   #9 (permalink)
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Vehicle: 1992 300 GDL
Location: England
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Radiator

Hi
An easy way to check for internally blocked radiators is to feel the rad with your hand after a lenghty drive.The rad. should feel hot all over. Evenly spread from the inlet side to the outlet side. It's a bit tight with the fan but very effective. If you find a large area of cold , then that area is not getting water through it ...probably blocked.The channels run horizontally so check it that way.I've been told that the diesels were troublesome in that respect

Merry Christmas

Roly
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Old 12-20-2002, 02:39 PM   #10 (permalink)
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Date registered: Aug 2002
Vehicle: 280GE
Location: UK
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There is a garage in Wimbledon recommended by some of the members of the G Wagen owners ...


There is a garage in Wimbledon recommended by some of the members of the G Wagen owners Association. They use a G wagen as a recovery truck.

Steve Redfearn Motors
Tel: 0208 540 2311

regards

Scott
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