E-Class (W123) 1976-1986: 240D, 280E, 300D, 300TD, 300CD

white smoke at startup

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Old Nov 19, 2010 | 01:29 PM
  #1  
Stephanus 007's Avatar
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From: South Africa
W123, 280E 1984
white smoke at startup

i recently saw that when i start my car, that he gives no problem. But when i use the accelarator, that he gives out white smoke. That carries on for about 200 to 300 Meters. I`ve asked a coupe of mechanics, they say it must be valve stem seals. But it`s not black smoke, Even if i take my foot off the accelerator and put my foot down no smoke at all.

I`ve now even heard that it might be too much brake fluid, checked that. It was to overfilled. The master silinder might put some brake fluid in the engin. Anyway i put it on the level, and the problem is not gone.

Might it be that the injectors are dirty? It seems that no one is able to say what the problem is. Will it help or worsten if i use Prolong Fuel Conditioner(add it to the petrol), to clean the injectors?
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Old Nov 19, 2010 | 09:16 PM
  #2  
Outre's Avatar
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83, 300D Federal
How many miles are on the Engine and did the Engine over heat recently?

Keep an eye on your Coolant level.
If your Coolant level is dropping gradually or you have bubbles in you Coolant you could have a Headgasket Leak or a Crack in the metal somwhere.

I do not know much about the Bosch Gasoline Engine Fuel Injection System to say much on that. However, there are a lot of cars that use it so there should be Forums for them and the symptoms would be the same.

I do not think putting a Fuel Injector Cleaner in your Fuel would hurt anything as long as you follow the Instructions on the Bottle.
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Old Nov 20, 2010 | 01:25 AM
  #3  
Stephanus 007's Avatar
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From: South Africa
W123, 280E 1984
kilometers on the clock

The car have 194290km on the clock. When i bought it(3 weeks ago). I used the car when i went on vacation. It now stands on 195250km. The brake fluid is now on it's level, will check today if it was the problem.

The water level i also checked, it did not really use any water at all.
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Old Nov 20, 2010 | 09:38 AM
  #4  
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From: Federal Heights, CO
1982 300D VNT, 1980 240D 3.0T, 1982 300TD
White smoke when cold is condensation in the air.
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