About six times out of ten if I softly touch the brake pedal I will hear a short buzz -- lasts about a half-second. It sounds like a very short version of the buzz you hear when you leave the lights on or the keys in the ignition. Occurs after starting the car, while still idling in park. Is this normal?

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2008 E350 4matic / Black/Anthracite

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Gone but not Forgotten:
2001 E430 4matic, 206,xxx miles, Black/Charcoal
1995 E320, 252,xxx miles, Black/Grey
1989 260E, 223,00 miles, Black/Black

Is it the buzzer, or just something that sounds like it?

I am thinking perhaps the check valve on the booster?

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-tp


1990 300SE "Corinne"- 145k daily driver - street modified differential - PARTING OUT OR SELLING SOON - PORTLAND OR. AREA - PM ME FOR DETAILS
1988 560SEL "Gunther"- 190K passes anything except a gas station
1997 S420 - 265k just bought it with a rebuilt trans. Lovely condition

I believe it's the same, behind the dash that you hear when the door is opened with the key in the ignition, but of very short duration -- just a blip and it's gone.

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2008 E350 4matic / Black/Anthracite

------------------------------------
Gone but not Forgotten:
2001 E430 4matic, 206,xxx miles, Black/Charcoal
1995 E320, 252,xxx miles, Black/Grey
1989 260E, 223,00 miles, Black/Black

Clean fuse #5................

__________________
A Dalton

Will do. Thanks.

While I'm at it, I'll clean the brake/stop light switch.

__________________
2008 E350 4matic / Black/Anthracite

------------------------------------
Gone but not Forgotten:
2001 E430 4matic, 206,xxx miles, Black/Charcoal
1995 E320, 252,xxx miles, Black/Grey
1989 260E, 223,00 miles, Black/Black

My W126 does it too sometimes, but that might be due to my excessive brake lighting. I have the rear-lamp mod + a LED bar....I'm pushing about 90 watts of light in back when I hit the brakes.

__________________
-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

That appears to have worked -- thanks. I actually cleaned the #5 fuse holder and put in a new fuse. I will likely now replace all of them.

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2008 E350 4matic / Black/Anthracite

------------------------------------
Gone but not Forgotten:
2001 E430 4matic, 206,xxx miles, Black/Charcoal
1995 E320, 252,xxx miles, Black/Grey
1989 260E, 223,00 miles, Black/Black

Common E320 complaint ..that is feed for N7 and that is what you hear buzzing...........

__________________
A Dalton