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30 Posts
Have 2004 300M. Over the last couple months I have a somewhat intermittent brake issue. The right front will lock up at medium to slow speeds (under 25 mph) and slippery conditions. And when I say lock I mean it takes 3-4 seconds after taking my foot of the break peddle to get it rolling again. The first time was in a snow storm and I almost slid into an intersection. It locked up when the light turned green I hit the gas and it took a second or two before the car started moving and I could see hear the left front spinning and pushing me slightly around the right front. Then it didn't happen again for a month or so (and we have had a fair amount of snow this year). Two weeks ago it locked up a dozen times in one day all as I was coming up to a stop sign in the snow. It only happens when the ABS activates. I tried it in various parking lots in rain snow and dry. Couldn't get it to happen in the dry or rain, but it happens about 30-40% of the time on snow. Should also note the Traction Control works fine, and the first few storms of the year it didn't do this at all. On another note brake lines were changed back in September and all lines bled. Have about 8,000 miles since then.