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Water pump on VW Passat
Anyone know anything about a water pump in a 52 VW Passat 1.9 TDi?
Mine has just packed up, but it packed up less than 4 miles after a big motorway shunt where I was rear-ended (the front was untouched). I've been told the impellor sits on an axle and it had come off (could this have been due to the knock?), and to fix it requires the cam belt being replaced as well, as the water pump is driven by the cam belt. Thanks |
Re: Water pump on VW Passat
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I know a little bit about water pumps, albeit a few years back, but nothing specfically about the Passat.
In ten years, I NEVER heard of a rear end shock knocking an impellor off! I simply cannot conceive the mechanics of that happening....and were it so, it would have knocked a whole load of other things off, too! In ten years, neither did I meet a lot of cases where the impellor fell off by itself. What I did see a lot of was leakage through the seal causing the bearing to fail - then the impellor can smack into the volutes and get dragged off. If yours has a plastic impellor, there has been an odd case of distortion following water leakage. As for replacing the cam belt: cam belts are usually good for something like 60,000 miles depending on the vehicle - often warranted for that sort of period. Everyone knows they can last loads longer but most manufacturers recommend replacement at that time to be safe rather than sorry. Plus a bit of revenue opportunity. So, depending on how many miles yours has done since last replacement, it may/may not be a good idea to replace it. But unless it has been damaged when the water pump failed, in my experience, it is not a given that it HAS to be replaced with the pump. E & OE! |
Re: Water pump on VW Passat
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I guess I was just unlucky. I got stung in the past by a garage and I think I've been bitter & twisted ever since! thanks chaps |
I work for SEAT,So I'm very familiar with the PD Engine,unfortunately there is a problem with the impellers breaking up on the later petrol/diesel VAG engines.(bad design) You may as well have Timing belt/tensioner replaced at same time,as the Front of the car has to be taken off/moved forward,and you'll have to pay twice if you have the belt changed at a later date,by the way belt change interval is either 40k/60k depending on engine code.
If yours is a TDi engine,(PD is a turbo,has a black plastic rocker cover under engine top cover,Tdi has metal!),Belt interval is 60k |
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To Treacle,
Due to a Cr*p design! What was wrong with the metal impellors? At least they didn't break-up/fall-off! Cost I suppose! Do you work for one of the VW brands then? |
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I'm boring myself now................. |
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Trouble is while they're breaking up and failing more will be made and sold............ which= ££££££££££ |
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