c32used

I have for a few months now the air bag system(SRS) warning light on which appears to be my sensor on passenger side...I had it cleared with StarDas machine 2x before but it turned on a few times but then went away but now its pretty much on all the time...what might be a quick cheap fix for a car without warranty?

Chazz

I have no idea if this applies here, but on my BMW it's a common occurrence. It has something to do with the drivers side seat belt. A good friend of mine had his repaired on his BMW. I'll find out for sure what he had replaced tomorrow and post the info here.

c32used

TemjinX2

i think it has to do something with the seat belt sensor going bad. i believe if you do a search on the w203 forum, you can find it.

TemjinX2

yeah bmw's are knowned to have seat belt sensoring going bad. happened a few times with my friends 5-series.

c32used

I got to hit the sack but will search tomorrow if you recall anything please inform me...it doesn't effect the car at all just me seeing that annoying warning light.

TemjinX2

here's one thread about a random srs light on the passenager side. turned out to be some loose wiring
https://mbworld.org/forums/c-class-w...ight-came.html

c32used

I'll check it out.

redfarsi

If SRS light is on, would that prevent airbags from deploying?

c32used

TopGun32

I had this issue to when I once replaced my battery. Also when disconnecting my seat modules (The fiber optic looking connectors)

Try disconnecting the battery over night.. to see if it clear.

That solved my issue.

djoa

- Gearbox seal leaking
- lower A arm bushing
- water tank (contamination)
- AC vent flap motor
- coolant pump
- guide pulley

c32used

You know this is for "SRS" light right?

saer1one

c32used

Heres the possible cause... Now prior I had this warning code removed with StarDos system and it came back even though the passenger side sensor was replaced. I went today to MB dealer to have it checked and StarDos machine had no warnings and all systems appear to be fine so the tech told me that it has something to do with CanBus and referred to a possible new ignition switch but I recalled seeing "display fault warning" before and remembered that Pac Devices deal with the can bus thus told the Tech and he explains that is possibly the cause...so he cleared the code and if it returns then I am removing the Pac Devices and removing warning again and seeing if it fixes the issue.

TemjinX2

hope it works out. dont think its a canbus error. canbus errors don't cause srs lights. if you unplug your seat control module, it causes a canbus error. It gets stored in the ecu but doesn't cause any cels. When you plug your ecu into star, the canbus errors will show up from all the times you unplugged the seat control module.

c32used

The system was checked thoroughly like 3x already the first 2x we had warrantee replace some possible parts but nothing changed the warning came back...I remember not having an issue while Pac Devices weren't installed and I have seen display faults and other weird things ever since the Pac devices were installed. I feel more like its a huge possibillity and hope its this cause a new ignition switch is over $800 parts alone. I and loungn14 have had issues with our Pac devices...he went to the Car.PI and since the seller sent me a new one I stood with Pac. I just hope its this cause really prefer to spend as little as possible. If you have any suggestions for my "SRS" warning please let me know thanks bud...

ScottW911

Oh boy! It looks like I am joining your SRS club today.

I was cleaning up my C32 this morning in the driveway. I had pushed it out of the garage, as I didn't want to start it up for a few seconds. My son's truck battery died and I decided to help out with a jump. I turned the ignition on and put the car in neutral, rolled down the driveway while turning the wheel to the left. Suddenly, I heard and odd pop and the SRS warning light came on. It won't go away now.

I had just moved the steering wheel to the fully extended position during the cleaning and moved it back to my driving position after cleaning.

My fear is that something really did break in my air bag system. I shutter to think what that could cost.

Any other experiences or suggestions?

c32used

This sucks it seems lately there has been some more new common problems..well ever since the "srs" light was cleared well it hasn't returned (knock on wood). I did see today that "display" warning go to work shop but it went away...as for your problem have an MB tech put it on SDS machine so all the components can be tested..it may be simple or complex I guess the simplist and free way to test it is remove power cable from battery overnight, reconnect it, if still on drive for a while maybe 300-400 miles and hopefully it goes away. I hope its my Pac Steering Wheel devices since it work on the Canbus system whatever you find let us know.

ImportLabSRT

99% of the time it is the child recognition weight sensor in the passenger seat in the C and E class vehicles. Vic, all you have to do is call man, Im 15mins down the road. Text or call me sometime and Ill get it taken care of for you.

TemjinX2

1+ i agree...i know on bmw's its usually the weight sensor or the seat belt sensor.

edtv82

do you have the OEM steering wheel or an upgrade/aftermarket? the SRS sensor itself could be bad

ImportLabSRT

We stock the Child Recognition Sensors at work because of how frequently we replace them. The problem with the sensor is that its basically a contact pad between the seat cover and seat pad. After time, the contacts go bad and the SRS light comes on. The system still works, but the passenger side airbag does not turn on or off when a passenger gets in and out of the seat.

c32used

I appreciate the advice but I had that sensor replaced during warrantee and rechecked last week Thursday. It hasn't returned yet but I did see a display warning in malfunctions but it went away..pretty much ever since the Pac Audio devices were installed I notice weird activity on the Display..but if you are dead set its the sensor then let me know a good day to pass by..I don't mind having system rechecked again.

ScottW911

Phew! I think I may have dodged a bullet here. After my SRS light came on this past weekend, I had not driven it until this AM. I had only fired it up several times to see if the light returned, over the weekend. Well, this morning, I go out to my early meeting and the SRS is bugging the heck out of me. By my third start today, the warning light is gone. WooHoo! I don't know what it was, but as long as it stays gone, I'm OK with that.