sv4

I had a malfunction message on my W203 today that says ' BAS Visit Workshop ' while driving. However, there did not seem to be any difference in the car's performance and braking. After switching the car off and re-starting ( the Microsoft way! ), the malfunction turned off and did not reappear after driving.

As my next workshop service visit is not due for some months yet, is this something that I should worry about, or leave it till the next service?

yeuchau

sorry this might seem dumb

but what is BAS??

GuruGuy

Mine did the same thing this morning. It was parked outside and 20 degrees.

Car started very slowly...battery drain from the cold. When the voltage drops in these conditions, the car will shut off things to enable the vehicle to start. BAS is one of them. When the car started I let it run a few minutes and then shut it off and restarted. BAS message gone. This is normal behavior.

Taking it in tomorrow for new battery.

red97z

I get the BAS every time I drive, it's very annoying, as it will pop up and then go away randomnly.

GuruGuy

And you don't think it's important enough to take it in and have it looked at?

red97z

I should have mentioned, I've taken the car in twice to get it "looked at." Both times, the tech rep's have told me that they have deleted the code and it's nothing to be worried about, my brakes are new, and they work fine. Both times after I've had it looked at, the code BAS is gone for about a week, then it will come back, so I'm really not that concerned about it. Everything on the car is working properly from what I can tell, I'm thinking it's a faulty fuse or something, I've heard the wiring on the C240's isn't exactly the best.

sv4

Thanks, all. The fault message has not reappeared after several days of hard driving. The battery is around 2-3 years old, but I now recall that the car was not in use for more than a week while I was on holiday, so it may have well been a battery drain.