Basically the parking brake is is not locking when its put on. Is this a common fault on a w202 ( 94' model ) ? And more importantly is it an easy diy fix? Tried phoning euro car parts earlier to see if i could get a whole new pedal/unit. They aren't answering. May get down later to ask. If anyone has any info on fixing this it would be of great help! ( only got about 2 weeks to sort it for mot)