Abs, esp, bas

[N7OGP]

Other than the brake light switch which i have fitted 3 what can cause the problem, i have an intermittant fault with the warning light, like today every time i went out the warning lights came one. yesterday they never came on. i just cant work it out. ABS,ESP,BAS. on the dash. can any body help, please

 

[nick mercedes]

Other than the brake light switch which i have fitted 3 what can cause the problem, i have an intermittant fault with the warning light, ABS,ESP,BAS. on the dash. can any body help, please

Check the fuses under the seat.

 

[lynall]

Try a search for parametric steering iirc theres a switch that sulks if steering not set up for straight ahead and can be temp reset by turning steeering lock to lock.



Lynall

 

[Dryce]

ABS,ESP,BAS. on the dash. can any body help, please

Wheel speed sensor?

We've had both rear ones fail on our R170 and on each occasion all three of these dash warnings came on.

 

[renault12ts]

The exciter ring on one of the wheels can fail. This will light all the above and make parameter and cruise inoperable. Happened to me couple of weeks ago. Repaired for £100, new £600 odds.

 

[N7OGP]

would the exciter ring show up on a diagnostic, it has been on the diagnostic machine and came back as brake light switch.
if it was the speed sensor i have read in forum that the doors won't automatically lock when driving.

 

[nick mercedes]

would the exciter ring show up on a diagnostic, it has been on the diagnostic machine and came back as brake light switch.
if it was the speed sensor i have read in forum that the doors won't automatically lock when driving.

It may be the alarm siren, which is on the same fuse as the brakes etc, check all the rear fuses.

 

[N7OGP]

It may be the alarm siren, which is on the same fuse as the brakes etc, check all the rear fuses.

we could not find any fuses for the brakes lights anywhere.
it is now fixed, there was a bad live to the switch. a new live routed to the switch, works touch wood)

 

[A210AMG]

Hello

My ML had the same error bulbs, turns out it was a lose connection on a speed wheel sensor. Had it plugged into a star machine and the Merc specialists traced it to this part (behind rear inner arch) replaced and codes cleared for £40.

My locks worked and everything else when the lights were on but then all cars are different.

I googled mine and found people changing brake servos, ECU's and all manor of parts costing hundreds. Google is good but also worrying.

Mine was a simple fix in the end but its down to the mechanic to trace the fault down.