In my 98 E300, the ABS, BAS, and ESP indicators came on driving (I believe while turning a corner), as is the case when the battery is disconnected. I turned off the car, turned it on, and the indicators came on immediately. Turned car off and on again, turned the steering wheel all the way in both directions and the problem went away.

What, if anything, can I conclude from those symptoms? Brake light switch?

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14 E250 Bluetec "Sinclair", Palladium Silver on Black, 153k miles
06 E320 CDI "Rutherford", Black on Tan, 171k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion

19 Honda CR-V EX 61k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife

If it was neutralizing steering sensor then you resolved that when you turned steering lock to lock. Without a puter it is kinda hard to tell what is going on. If it was not neutralizing then it will pop back up. Has the battery been disconnected recently?

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Jim

the brake lamp switch failure shows up the indicators right on pressing the brake pedal while driving.

If you had it while turning, its most probably the steering angle sensor which you reset again.

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2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)

Battery not recently disconnected.

If it is the steering angle sensor, was this probably just a "glitch?" Or is it likely starting to fail?

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14 E250 Bluetec "Sinclair", Palladium Silver on Black, 153k miles
06 E320 CDI "Rutherford", Black on Tan, 171k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion

19 Honda CR-V EX 61k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife

Start with easy bits first, brown earth clamps under hood, from memory there are 4/5, then brake switch as mentioned.

ABS speed sensors also cause the same issue as they lose their magnetic field over time. Reluctor rings on the back rust out and snap which can be hard to see or detect as they still look whole.

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David


1996 Mercedes S124 E300TD - 129k - rolling restoration project -

1998 Mercedes W210 300TD - 118k (assimilated into above vehicle)

Hi shertex did you ever resolve the issues?

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06 MB E320 CDI 123k miles
14 Sienna (wife's DD) 36k miles
11 GL350 Bluetec 136k (Sold)
96 E300; 292k+ miles (Donated)
11 Sprinter 22K+ miles (Sold)