noirlove2

My driver side headlight was blinking so I tried to fix it. I was not able to but after I tried, I noticed the following behavior with my car:

1. Auxiliary radiator fan constantly on high speed
2. No air conditioner
3. Passenger side low beam out
4. Brake warning light constantly lights up
5. Wipers stopped working
6. Lights on the doors inside the car doesn't light up any longer

I am also getting the following messages on the dash board:
a) Side Marker Lamp LF
b) Display Defective....Visit Shop
c) ESP....Visit Shop
d) BAS....Visit Shop
e) Airmatic Car Rising

I visited a shop, X431 Launch was used to check codes/faults/errors and the following codes were identified:

1. B1059 Fault in CAN communication with control unit SAM-FL
2. B1094 CAN communication with module N10 6 (FL module SAM) interfered
3. B1011 Module voltage supply too high (overvoltage)
4. B1111-001 Component N69/1 (FL door module) position adjusting 1 error switch signal implausible.
5. B1113-001 Component N69/1 (FL door module) position adjusting 3 error switch signal implausible.
6. B1521-003 Left mirror inward/outward turning short or discontinuity.
7. B1121 Component S20 1s2 (Right Front power window switch) is faulty. Component hanging.
8. B1193 Component S86 2s1 (serve turnoff micro switch) cannot be closed or short circuit to ground

DNA47

Did you disconnect the battery lately?

noirlove2

Thanks for the reply. I appreciate it. No I did not disconnect my battery lately. The only thing I did was to try and fix my driver side (right side) head lamp since it was blinking and after I messed around with it, my car started acting weird.

shardul

iTrader: (1)

Front SAM is bad

noirlove2

Thank you. I kind of suspected SAM will be the culprit based on the articles I read online. Can you help me further, I looked at my fuse box compartment, I noticed two modules. Which one is the Front Left SAM? I saw on one of the module ESP+PML+BAS is written on it. Is that the front left SAM? Or the other module? Also, is it as plug and play device or it has to be programmed at the dealership? And can one buy it used or it has to be brand new. I really appreciate your assistance.

trombone

I also had an episode of wierd power loss a several places ikewindows, wiper etc with a series of malfunction messages likeyo (EP, BAS etc).

Service advisor at the dealer suspectd a SAM.

I had doubts and rather bought a new battery and all the misery was gone.

The trap is that the battery was seemingly OK, no test showed any defect, yet the battery was the actual problem. Apprently these cars have electronics so sensitive power hungry, that just a slight loss of voltage or amperage may wreak havoc.

noirlove2

Wow, now you put another twist into this.."battery". I never had battery problem before and I did not have these issues/problems until I tried to fix my right side head lamb. I am thinking I probably have a short circuit somewhere. I had a mechanic check my fuse box and he said power is not coming into the front part of the fuse box. He checked all the fuses and all worked except for fuse with 50 amps in the front of the recirculation pump relay. Also, the "building post 15" relay is hot and makes a clicking sound, he suspected the relay is storing too much power. Thank you for all the assistance.

tusabes

I always repeat this - the w220 is so sensitive to weak battery , even a battery that tests perfectly fine may start causing problems!

w220 always needs a fresh strong battery. If you have electrical problems, first test should be to install a brand new battery

noirlove2

But can we rule out the from SAM? Few of the error code I am getting points to the Front Left SAM. This is very confusing. I looked at my fuse box compartment, I noticed two modules. Which one is the Front Left SAM? I saw on one of the module ESP+PML+BAS is written on it. Is that the front left SAM? Or the other module? Also, is it as plug and play device or it has to be programmed at the dealership? And can one buy it used or it has to be brand new. I really appreciate your assistance.

noirlove2

Thanks guys..The problem has been resolved. I replaced the battery and I am back in business. Thank you so much.