Hey guys,

I'm having the elusive BAS/ASR light problem. It only happens after driving down the road for a few minutes and doesn't seem to be brake switch related because I'm not braking any time it comes on. I was thinking of getting a used ABS module and replacing that to see if it's the culprit.

Can anyone tell me exactly where it's located? Pictures possibly? Thanks in advance!

RF

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-RF
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1999 E320 Wagon - 170,000 miles

On my 97 E320 it is in the right side box under the hood at the base of the windshield. The aluminum box is bolted to the engine computer.

However, before you go changing parts, scan for codes. Failed speed sensors generally more common than a computer failure.

Good advice from SL320, having codes read. FWIW, a brake light switch can be failing without applying the brakes and is the most common failure point.

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90 300TE 4-M
Turbo 103, T3/T04E 50 trim
T04B cover .60 AR
Stage 3 turbine .63 AR
A2W I/C, 40 LB/HR
MS2E, 60-2 Direct Coil Control
3" Exh, AEM W/B O2
Underdrive Alt. and P/S Pulleys,
Vented Rear Discs, .034 Booster.
3.07 diffs 1st Gear Start

90 300CE 104.980
Milled & ported head, 10.3:1 compression
197° intake cam w/20° advancer
Tuned CIS ECU
4° ignition advance
PCS TCM2000, built 722.6
600W networked suction fan
Sportline sway bars
V8 rear subframe, Quaife ATB 3.06 diff