Brake problems on 1994 Lexus LS400

Is the brake system irrepairible if someone may have put a
oil based substance in the brake line?

Asked by for the 1994 Lexus LS400
master cylinder, all brake hoses, calipers and the abs unit are required. we did one a couple of weeks back and it was about a 2,000 repair. you may want to check with your insurance company to see if you have coverage. do not drive the car as it will fail and the results could be dangerous.

2 answers
If oil was added to the brake fluid reservoir, then all the rubber in the system may have been damaged and will need replacement. Is this what happened?