SLK/R170: SLK rear bulb replacement
#2
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Join Date: Nov 2001
Location: Chandler, Arizona - USA
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'02 SLK32 AMG
If you mean the tail lamp bulbs, you access them from INSIDE the trunk. On the passenger's side, just pop off the hardtop motor access panel (it's right behind the CD changer if you have one). You can then reach in and pull out the bulb sockets by twisting them 1/4 turn counter clockwise.
The driver's side is a bit more difficult. There is also an access panel on the driver's side for the phone module and antenna. This panel is held in place with some plastic plugs (5 or 6 of them, I think). You can see the little plastic circles on the trunk liner. You need to pop out the middle of each plug using a small flat-blade screwdriver or something similar (be careful), then the plug will slide out easily. Once all of the plugs are out, the panel will come off and you can reach the bulb sockets.
Once you're in there, I recommend coating all of the contacts on the sockets with an electrical contact corrosion inhibitor such as Ox-Gard. The SLK tail lamps are a known problem. Very frequently, the contacts corrode to the point where the socket cannot be removed from the housing and sometimes the whole assembly must be replaced.
The driver's side is a bit more difficult. There is also an access panel on the driver's side for the phone module and antenna. This panel is held in place with some plastic plugs (5 or 6 of them, I think). You can see the little plastic circles on the trunk liner. You need to pop out the middle of each plug using a small flat-blade screwdriver or something similar (be careful), then the plug will slide out easily. Once all of the plugs are out, the panel will come off and you can reach the bulb sockets.
Once you're in there, I recommend coating all of the contacts on the sockets with an electrical contact corrosion inhibitor such as Ox-Gard. The SLK tail lamps are a known problem. Very frequently, the contacts corrode to the point where the socket cannot be removed from the housing and sometimes the whole assembly must be replaced.
Last edited by Brian_R170; 12-13-2002 at 03:30 PM.
#3
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Thanks very much! I wasn't sure if the fasteners could be popped out or whether I needed a special tool. Good advice about the ox-gard...will do! Thanks again for your reply.
#4
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Thread Starter
Additional tip: If you are replacing the rear driver's side brake light bulb (as I was), you can get to it by removing the single fastener on top near the trunk linkage (where the arms go down thru the "brushes"). Prying this aside and unscrewing the brake bulb is much easier than removing the panel and all the telephone/antenna parts...
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slkgirlygirl (07-12-2016)
#6
Ok, so I got to the bulb socket on Drivers side rear brake lamp is fine and the correct one (finally). I will check all my other bulbs now too to be sure they are the proper V and W...but the Q is: how do I tell if the housing socket is ok or if it is the ground wire that is bad, because the light works if I smack the lens. When I start the car, the idiot light on hte dash is out, but as soon as I hit the brake pedal, the idiot light comes on. Might it be the BRAND NEW brake switch my machanic put in a half year ago?? HELLLPPPP!!! Thanks. I love doing my own car work, but electricity issues scare the *)&^%* outta me...
#7
Here's another problem...Does anyone have detailed directions for me on how to access the microswitches on L and R sides of trunk for testing them for the rear windows to go up when closing the vario roof?? I am certain that one of the "trunk closed" switches either died or a wire has been severed...It looks like MB dropped the ball when putting in the trunk moulding as it looks like I have to support the roof to take out two T27 bolts jsut to slide the moulding out on the left trunk side!! Am I wrong?? Again, help is greatly appreciated!!!
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#8
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MB SLK320
Had a similar problem with my '01 SLK320, driver's side brake light out. Pulled the socket, bulb checked out OK, treated socket contacts with AL anti-corrosion stuff, put it back in and it work, for a while. Then stopped working, dash idiot light back on, and brake light still out. Pulled socket several times, cleaned contacts, now both brake lights are out (I didn't touch the other side). Anyone have any ideas???