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My rear fog light is out. While I'm in there, I'd like to replace the other two (backup and turn signal) as well.
I tried 3 different auto parts stores with no luck. Apparently, the only one available as a bulb-only from the dealership is the clear backup light. The rest only come attached to the plate ($70+).
The part numbers in the photos are Phillips (light bulb company) part numbers.
W221 Taillight board W221 Rear fog light W221 Backup light W221 Turn signal
I'm not interested in switching to LED. I just want to replace all of the above with new ones.
I think something might be wonky with your part numbers. Old part numbers for Philips maybe? Luckily, the wattage is printed right there on the bulbs.
Turn Signal - PHILIPS 12271NA
Reverse Lamp - PHILIPS 12184
I can only find the brake lamp on eBay for some reason. Maybe they don't go out very often? PH19W was getting results. It's a module instead of just a bulb.
If you have a light switch with this second fog light you can do it.
Turn on the lights (not auto).
Pull towards you one click for the front fog lights.
Pull towards you a second click for the rear fog lights.
Bright red lights are here. They are as bright as brake lights and are always on. They are there to keep cars from running up on you in very foggy weather.
This is a very popular option on German cars. I've seen them on BMWs, Audis, and even VWs. That being said, not all W221s have this feature.
You'll notice that his switch only activates a single light. I have rear fog light bulbs on both left and right sides of my US spec car...but maybe only the left is programmed to illuminate? It's the right side that will not illuminate, even though there is a bulb in the assembly. Hmmm....I just realized that I don't have any "bulb out" codes. So, maybe it's working as designed?? But, why is the bulb there? Questions...
Correct bulbs are soldered into sockets except for backup bulb as far as MB is concerned you need to replace mount assembly. Not too difficult to unsolder the old bulb and solder the new one in contact AZV Optics (MBW sponsor) to see if they can assist with bulb: aznoptics@gmail.com
Those are parking lamps. You use them for visibility when you have to parallel park your car on narrow streets. They're supposed to be only on the driver's side.
Correct bulbs are soldered into sockets except for backup bulb as far as MB is concerned you need to replace mount assembly. Not too difficult to unsolder the old bulb and solder the new one in contact AZV Optics (MBW sponsor) to see if they can assist with bulb: aznoptics@gmail.com
Thanks!
Originally Posted by Shadly1
Those are parking lamps. You use them for visibility when you have to parallel park your car on narrow streets. They're supposed to be only on the driver's side.
No. I'm familiar with the parking lights. I'm referring to rear fog lights (see the video I posted above).
For Parking Lights, you twist the knob to the left (past O) one or two clicks. They activate the front and rear "corner lights" (I don't know the proper term. But the lights that are on at night along with your headlights).
Those are parking lamps. You use them for visibility when you have to parallel park your car on narrow streets. They're supposed to be only on the driver's side.
Here are the parking lamps...note how they are separate from the fog lights:
Yeah, you're right. I have that too. I have never had a need to use such a thing. No fog in the Phoenix area and every street and highway is lit up like daytime at all hours.
Yeah, you're right. I have that too. I have never had a need to use such a thing. No fog in the Phoenix area and every street and highway is lit up like daytime at all hours.
Yeah, it'll be there when you need it. I've been in some really tense situations where I've been caught in unexpected fog and worried about people running into me.
There have been several pileups on the interstate due to fog. I wish these were mandatory equipment on all vehicles. It's such an easy add-on with a great benefit.
My rear fog light is out. While I'm in there, I'd like to replace the other two (backup and turn signal) as well.
I tried 3 different auto parts stores with no luck. Apparently, the only one available as a bulb-only from the dealership is the clear backup light. The rest only come attached to the plate ($70+).
The part numbers in the photos are Phillips (light bulb company) part numbers.
W221 Taillight board W221 Rear fog light W221 Backup light W221 Turn signal
I'm not interested in switching to LED. I just want to replace all of the above with new ones.
Rock Auto has turn signal and backup. Probably has rear fog also, but I didn't take the time to match up the numbers.
Bright red lights are here. They are as bright as brake lights and are always on. They are there to keep cars from running up on you in very foggy weather.
high intensity rear lights - they are in fact significantly brighter than a brake light in the tail light cluster
dangerous and stupid European safety idea way back in the early 1980's where headlamps were yellow glow worms, cars had no brakes and no grip and the tail lights on most cars were smaller and dimer than a 1960's bicycle dynamo light
there are used by most morons at the slightest sign of inclement weather - when the legal use is only if visibility in FOG is below 100m. Used at night or in heavy rain basically you can't see ANYTHING in heavy traffic on motorways and they are the cause of many multiple car pileups
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