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1999 E55, 2001 E320, 1990 560 SEC, 2004 ML350, 2001 ML55, 1995 S500, 1998 SL500, 2010 E550 Sport zoo
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The updated OSRAM/Sylvania replacements are 7506 for single filaments, and 7225 for dual filament - and you can't mix left/right between old/existing brass base bulb and the new/updated nickel base.

Aftermarket sources 7506 are like $1.50 ea and 7225's like $2.50 - roughly.

autohausaz.com has decent prices if you add a air filter or whatever to bring up to $25 order for free surface shipping
 

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2002 e320 4matic Wagon
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868 Posts
Discussion Starter #3
Three questions:
1. Are nickel bulbs always better? The contacts are silver--so i assume i need nickel.
2. turns out that the bulbs in my tailgate are good. Why are there only three--not four? (there is a "blank" on the passenger side.
still can't find the bulb that is out, however.....
 

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1999 E55, 2001 E320, 1990 560 SEC, 2004 ML350, 2001 ML55, 1995 S500, 1998 SL500, 2010 E550 Sport zoo
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7,035 Posts
That blank is for the European rear fog lamp not used in US.

If your bulbs are indeed all working - and brake light switch is fresh MB switch - then do a forum search to clean contact plate and bulb holders - inconsistent contact from bad contact can set off the cluster warning.

Suggestion - with bulb holder in proper position use a Sharpie to draw a line on both the bulb holder and matching line on the contact plate to mark both the proper "locked in position".

Then rotate the bulb holder to the "unlock" position - make another mark on the contact plate matching the line on the bulb holder - that way you have clear line indicators for both unlock and lock position and can easily reverse the process.

It's easy to get the bulb holders scrunched up incorrectly which only adds to the poor situations

I have been fortunate - for me cleaning up contact area on each holder - cleaning up and bending a couple of bulb holder contacts - and one time one fresh bulb holder are the only things I personally have ever needed to do.
 

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2002 e320 4matic Wagon
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868 Posts
Discussion Starter #5
fabbrisd1
thanks for all your help. the previous owner got all these bulbs mixed up. mix of brass and nickel, amber where it's not supposed to be.
The only amber bulbs are the turn signal bulbs correct?
Also, anybody know the bulb number or wattage for the interior light in the tailgate? The people at the auto parts store couldn't figure it out, and the bulb in there didn't have any markings.
 

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1999 E55, 2001 E320, 1990 560 SEC, 2004 ML350, 2001 ML55, 1995 S500, 1998 SL500, 2010 E550 Sport zoo
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7,035 Posts
ALWAYS compare pin position on the bulbs you take out with the one you plan to put in - again, German MB/Audi/better-VW/Porsche have a different pin position than 12PM/6PM position for same size bulb in US cars.

Please understand you cannot "mix" brass base and nickel/chrome base bulbs in the rear lighting setup.


Please understand best not to mix China generic bulbs and Osram/Sylvania bulbs even if same bulb #.

Turn signal bulbs are Osram/Sylvania 7507

Rear license plate holder bulbs are Osram/Sylvania 6418 if I am not mistaken.

However, rear license plate bulbs (changed from inside trunk) would not cause brake light error.. only when turning on headlights/running lights same as side marker lights
 

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2002 e320 4matic Wagon
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868 Posts
Discussion Starter #7
Thanks--now the last bulb I am not sure about find is the lamp on the interior of the tailgate. Tt looks like #168, but could be several others, depending on the wattage.

Does anyone sell a complete set of bulbs for this car? I'd consider buying the whole set, replacing them all, and keeping the old ones as spares.
thanks
 
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