My son in law got into his V50 after it had been stood outside all night.
He had only driven a very short distance and was approaching a roundabout when he pressed the brake pedal and found it was solid !
He managed to return home, (down a small country lane which had no traffic) and immediately had the car taken to the Dealers.
After inspection they informed him that a "valve" had stuck in the brake system. Evidently, if the vehicle is parked for any length of time, pressure builds up in the system. When the vehicle is started, the valve releases the presssure and the system is OK. In this case the valve stuck and didn't release the pressure, resulting in lack of brakes.
He was informed by the Dealer that Volvo (UK) had had about "4 or 5 other instances of this valve fault".
He is a Traffic Police Officer and was very concerned about the fault. As he attends accidents, and is sometimes given the statement, "My brakes failed" he has tested brakes by pressing the brake pedal to see if there is pressure there. If the valve fails, there is brake pressure but the brakes are not working. HIs colleague in the Accident Investigation Dept. is also quite concerned about this, so if anyone else has had this fault, could you please let me know and I will pass the details on to him as he will be taking this up with Volvo UK.
Peter
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