Hi

I have an E320 (1999) and a while back the driver side parking light quit working and I got the defective lamp alarm, which I have ignored as I knew it was just the parking light. Today I picked up a pair of replacement bulbs. The ones installed said GE H7 so I bought the Sylvania equivalent H7.

Replaced both.

Same problem. Checked the old operating bulb from the passenger side and it works.

No loose conections I can find.

Now I discover through a series of things that the bulb works when I'm on high beams but now on low. This bulb has 2 terminals and I didn't even realize it changed at high beam.

Any advice for me? I'm confused.

Thanks,
Ron

 

i bet you have a wrong bulb someplace on that side. the wrong pins on the bulb.

 

Parking light bulb is a 64132 bulb h6w common name
the only place an h7 goes is the high and low beams and if you want those brighter
www.danielsternlighting.com 65watt rally H7's

 

Sorry guys, I guess my notifier wasn't on and I didn't realize anybody had replied. I pulled the working bulb from the passenger side and put it on the drivers side and same problem - nothing until I put it on high beam.

These are the inner (smaller) lights on a 99 E320 with the Xenon option.

Strikes me as odd that it would work only on high beam setting and also odd that a working bulb from one side fails on the other.

Could it be in the switch? Seems that would affect both sides.

Thanks for your earlier replies. Sorry I didn't check back sooner.

Cheers,
Ron

 

Rwolf,
My biggest complaint with my '98 and '00 E-320s was the constant failure of bulbs! Are you referring to the marker bulb that is in the high beam lamp(everyone thinks that this since all 4 headlamps are on that you must be using the hi-beams?) What I found is that it is critical that when you replace one bulb that it is a good practice to replace the other since it will fail soon as well and that the idiot light will pick up on the slight difference in the bulbs resistance. Good luck. Bob

 

Look for a resistor on the gray wire its about half way between the big bulb and the small one but you will have to take off the twist cap to the large one there is a gray wire from the harness plug in on the fender that runs the parking bulb lamp and the large running bulb,it has a small in line resistor, mine was burnt on one side ,i just cut it out and connected the two ends together and its been working fine ever since