Re: Tight gearbox
Posted: Sun May 26, 2019 1:43 pm
Casbantam,
I'm very disappoinrted to hear that they've not fixed the problem. As far as your warranty situation's concerned, I think you've a good case for insisting that they find and fix the problem once-and-for-all and that you incur no costs yourself. Quite clearly, at present the vehicle is all but unusable. Wriggling out of the warranty by them telling you that you'll now have to pay the costs because it's run out, and yet they weren't competent enough to fix the clutch issue in the first place, is just morally unacceptable, in my view.
A 'dual shaft'? That's where exactly?
When VW Main Office calls you, tell them that the dealer's technicians were unable to cure the problem, despite them apparently putting in new clutch components. Insist that, as it stands, the car is undriveable. No VW car of that age and calibre should have such a dreadfully-performing clutch and/or gearbox.
BTW, after you explained earlier that the technicians had sent you a video showing damaged fingers of the clutch coverplate, I double-checked the general appearance of Sachs coverplates, as shown in the 2009 - 2014 edition of the Haynes workshop manual for the Polo. The manual shows a fairly typical coverplate and you can see that the fingers are contoured to some extent. That's to say, they're not totally flat, and they're not meant to be. Instead, near the centre, the fingers form a raised, flat zone against which the release bearing presses. I've been wondering if the technicians misconstrued that as being distortion of the fingers. If in reality there was nothing wrong with the fingers and they merely replaced the coverplate with a new one, it wouldn't have put anything right. Usually, it's only if a finger has broken off or is singularly sitting proud of all the others that you'd expect some difficulty in changing gear.
The fact that they've apparently totally failed in this endeavour might suggest that they've not bothered to look elsewhere for the cause(s). Air trapped in the clutch hydraulic line, for instance? If there was, as a consequence of trapped air, insufficient throw of the clutch slave cylinder's plunger, the pressure exerted by the release bearing would be insufficient to disengage the flywheel from the clutch main shaft. That'd then certainly mean great difficulty in changing gear. Also, have they checked the adjustments of the gear-changing cable mechanism, especially now having installed new clutch components? You can see that mechanism on top of the bell housing, just forward of the slave cylinder. Without that carefully adjusted, you could fail to get into gear properly.
I'm intrigued by their reference to a 'dual-shaft'. Perhaps the problem lies deep in the gearbox itself, rather than in the clutch? My Polo is essentially the same as yours, ie. a TSI 1.2 Match Edition, and In terms of coding the 5-spd box on mine is a PED. To check what yours is, look at the label just inside the front cover of the VW Service Schedule booklet. I'm looking to see whether their contention that "it's just how they are" holds any water, because I certainly don't have gear-changing issues on mine! If your's is a PED-coded gearbox like mine, then quite clearly they are wrong in maintaining that all of them are bad when moving from one gear to another.
I'm very disappoinrted to hear that they've not fixed the problem. As far as your warranty situation's concerned, I think you've a good case for insisting that they find and fix the problem once-and-for-all and that you incur no costs yourself. Quite clearly, at present the vehicle is all but unusable. Wriggling out of the warranty by them telling you that you'll now have to pay the costs because it's run out, and yet they weren't competent enough to fix the clutch issue in the first place, is just morally unacceptable, in my view.
A 'dual shaft'? That's where exactly?
When VW Main Office calls you, tell them that the dealer's technicians were unable to cure the problem, despite them apparently putting in new clutch components. Insist that, as it stands, the car is undriveable. No VW car of that age and calibre should have such a dreadfully-performing clutch and/or gearbox.
BTW, after you explained earlier that the technicians had sent you a video showing damaged fingers of the clutch coverplate, I double-checked the general appearance of Sachs coverplates, as shown in the 2009 - 2014 edition of the Haynes workshop manual for the Polo. The manual shows a fairly typical coverplate and you can see that the fingers are contoured to some extent. That's to say, they're not totally flat, and they're not meant to be. Instead, near the centre, the fingers form a raised, flat zone against which the release bearing presses. I've been wondering if the technicians misconstrued that as being distortion of the fingers. If in reality there was nothing wrong with the fingers and they merely replaced the coverplate with a new one, it wouldn't have put anything right. Usually, it's only if a finger has broken off or is singularly sitting proud of all the others that you'd expect some difficulty in changing gear.
The fact that they've apparently totally failed in this endeavour might suggest that they've not bothered to look elsewhere for the cause(s). Air trapped in the clutch hydraulic line, for instance? If there was, as a consequence of trapped air, insufficient throw of the clutch slave cylinder's plunger, the pressure exerted by the release bearing would be insufficient to disengage the flywheel from the clutch main shaft. That'd then certainly mean great difficulty in changing gear. Also, have they checked the adjustments of the gear-changing cable mechanism, especially now having installed new clutch components? You can see that mechanism on top of the bell housing, just forward of the slave cylinder. Without that carefully adjusted, you could fail to get into gear properly.
I'm intrigued by their reference to a 'dual-shaft'. Perhaps the problem lies deep in the gearbox itself, rather than in the clutch? My Polo is essentially the same as yours, ie. a TSI 1.2 Match Edition, and In terms of coding the 5-spd box on mine is a PED. To check what yours is, look at the label just inside the front cover of the VW Service Schedule booklet. I'm looking to see whether their contention that "it's just how they are" holds any water, because I certainly don't have gear-changing issues on mine! If your's is a PED-coded gearbox like mine, then quite clearly they are wrong in maintaining that all of them are bad when moving from one gear to another.