Merc glow plug light

silverhorse

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Your Mercedes
300E/1998/3000diesel
On my 1998 210 3ltre diesel the yellow glow plug light comes back on after starting for about 30 seconds and then goes out. Does this mean that one of the glow pugs is failing or could it be a faulty warning light. The mileage is 150000 but it start on the button every time.
 

rpe2

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Silchester
Your Mercedes
His: 2018 E220 d; Hers: 2016 SMAX
Yes, one or more of the plugs is faulty.

Plugging into a diagnostic computer will identify which, although with the TD engine best to replace all as the manifold has to come off.
 

Number_Cruncher

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Your Mercedes
1995 W124 E300D TE
>>one of the glow pugs is failing

At least one.

Check their resistance values between the connector on the glow plug relay and a good earth.

If you find that you need to replace one or more, take great care - they snap in place very easily, making a simple job a nightmare!
 
OP
S

silverhorse

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300E/1998/3000diesel
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I thought so. What is the average likely charge for an indie to replace all 6 glowplugs.
 

turbopete

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Your Mercedes
2010 '60' Ford Mondeo 2.0TDCi Zetec (sorry)
not the quickest of jobs to do. inlet manifold needs removed to access them. id guess around £200. depends mainly on whether they come out and the labour rate of your local indy! a parts factor local to me supplied NGK glow plugs for my car for about £11 each if that helps
 

SilverSaloon

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Your Mercedes
w124/1994/om606
not the quickest of jobs to do. inlet manifold needs removed to access them. id guess around £200. depends mainly on whether they come out and the labour rate of your local indy! a parts factor local to me supplied NGK glow plugs for my car for about £11 each if that helps

you'll also need replacement breather plastic bungs aswell because they almost always break when you try to remove them if they are old.
 

turbopete

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Your Mercedes
2010 '60' Ford Mondeo 2.0TDCi Zetec (sorry)
plastic bungs??? dont remember ever touching any bungs on mine!!!
 

Number_Cruncher

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Your Mercedes
1995 W124 E300D TE
>>plastic bungs???

They're rubber - until they harden, and begin to feel a bit more like plastic! - and, they are only fitted to normally aspirated OM606s, so your turbo wouldn't have had them.

The other thing is the plastic clamps for the metal injector pipes should be renewed - a few of them will more than likely already be broken - they become brittle with age.
 

turbopete

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Your Mercedes
2010 '60' Ford Mondeo 2.0TDCi Zetec (sorry)
phew thats a relief then!
 

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