signalling problem in cold weather
Thread Starter
Newbie
Joined: Feb 2017
Posts: 4
Likes: 0
2012 E350
signalling problem in cold weather
The signals are mixed at cold temperatures on my 2012 E300, I try to signal right, the left signals will blink at cold temperatures (-15C and below). Car back to normal after driving for 15 minutes.
MBWorld Fanatic!
Joined: Jun 2020
Posts: 1,363
Likes: 1,012
'11 E350, '11 E550, '98 M3, '95 E320
That's a really odd issue... my first thoughts are at low temps, battery health is compromised. This can lead to weird electrical phenomena on these cars. I don't even know... I'd start by pulling codes with an appropriate scanner capable of deciphering MB code and not just a generic OBD scanner.
I'd love to see live scanner data off the steering column module looking at the switch inputs when your signaling right, but the left turn signal engages...
I'd love to see live scanner data off the steering column module looking at the switch inputs when your signaling right, but the left turn signal engages...
Senior Member
Joined: Apr 2016
Posts: 461
Likes: 158
From: Phoenix, AZ
2016 E350 Sport 2WD
A new battery might be in order. You might try putting a charger on the battery and see if the problem remains the same at about the same temperature. A lot of electrical devices don't work the same under low voltage conditions.
