Hello all,

I recently bought my son a 2007 Mercedes c280 4 matic with 109k miles. The car is super clean and just needs a few cosmetic things but one thing it does need is for me to figure out why on the cluster it says left turn signal light out. When I turn on the directional to the mirror doesn’t blink but when I lock the car with the remote the directional signal blinks.. anyone have an idea what is going on? The car does not have the folding sign mirror option. So I am confused and I’ve enough Mercedes in my life.

 

That is a weird one. Might be a SAM issue. The mirror blinkers do not have a fused connection, so if anything fries, it would be inside the SAM.

I assume you've confirmed that the bulbs also work? Also as part of the exercise, I would also switch both front bulbs (as in swap between L and R) and rear bulbs, just to take a bad bulb out of the equation.

These cars can be very finicky from an electrical standpoint, so the next thing I would check is the battery and voltage.

 

Thank you for the response. The only issue is if it was a bulb would be is that then when I arm the alarm to lock then the sise
mirror light wouldn’t blink which it is. I will check the bulbs and let you know. Thank you for giving me some ideas.

 

Yes, I’d replace all four incandescent signal bulbs…

Then, I’d check the function of the turn signals with the stalk, then the hazard switch in upper control panel then the lock/unlock functions.

If still acting as you described, I’d look into SAM issues - and research further.

Changing the mirror turn signals is very easy as well…and a affordable part throw option before a SAM…

 

I will definitely follow the steps you listed and report back.

 

Post pics. I had a 2005 C240 4M. Very reliable car. Interior was junk but it never broke down or left me stranded. Drove it 300,000 miles!

 

Hello,

Alittle background on the c-class. I knew it had prior accidents from what I can tell from the carfax report. It currently has 109k miles and the interior is mint. Like I am shocked how clean it is for a 2007. As my son is going to college pretty local and is not thinking of staying at school. Needless to say I have been a Mercedes cars owner for over 20 years so I tend to stick to Mercedes. When I first bought the c-class I knew it would need some mechanical stuff as no car that’s usually nearly 17 years old doesn’t. Off the bat it needs tires, rotors/pads all the way around, transmission flush, and the wheels need to be refinished as they have seen better days. The exterior of the car is also very clean and no visible damage. Of course I had to replace the hood release latch cause it was broken but it was an easy fix. Lastly the air conditioner blows hot air. I ordered a new compressor kit with condenser, compressor, and O-rings. I paid 3k for the car so if I put another $1,500 into it with parts and labor then I am happy. So far in parts I spent about $700 my friend who is a wholesaler has a mechanic shop on site.The mechanic quoted me $400 in labor to do brakes, install ac compressor and refill refrigerant, and transmission service. As far as cosmetic things I already did to the car was installed white led interior bulbs canbus error free also installed the bulbs in the license plate lights.Installed hid low beam kit. Ordered new floor mats. The last two things I changed was the hood emblem to the flat hood emblem and lastly ordered android carplay radio with rear view camera.




QUOTE=C280 Sport;8776763]Post pics. I had a 2005 C240 4M. Very reliable car. Interior was junk but it never broke down or left me stranded. Drove it 300,000 miles![/QUOTE]

 

Looks great!!!!

 

Any suggestions on what android radio to get? I have one on order but could cancel it your suggestion is a better option

 

I don't think you can go wrong with a unit from one of the major brands such as Alpine, Sony, Kenwood or Pioneer. I'm aware that those brands are more expensive than the Android units available on various web sites for $200 or less. I've seen posts from several people indicating that they have had difficulty with quality control on the less expensive units. See this post for an example. The problem could be due to a mistake by the installer, but I've seen several posts like this.

Disassembling the dashboard to install the unit is fairly time consuming. It would be irritating to have to do the work twice because of a defective unit.

Your car looks good. I'm glad to see someone else willing to invest in the W203.