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GS - 3rd Gen (2006-2011) Discussion about the 2006+ model GS300, GS350, GS430, GS450H and GS460

most common component failure in brake

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Old Sep 19, 2018 | 06:33 PM
  #1  
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nobelnabil
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Default most common component failure in brake

Guys,

Just to clarify, there is nothing wrong with my brake, I just wanted to know what to look for when i get that ABS light in GS 350. Is it:
-brake booster
-brake actuator
-master cylinder

and one more question, is it true that if a master cylinder goes bad then i should replace the brake booster with it?
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Old Sep 21, 2018 | 12:09 PM
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It's best if you pulled the codes. It could be the ABS module that has gone bad but it happens more on the 430\460.

If the master cylinder is leaking, then yes, replace the brake booster. Apparently, I was the unlucky one and had to replace both. I don't know why OEM master cylinder cost way more than the brake booster...
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