Engine Block Shake - VW BORA TDI

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Fri 14 Jan 2005 16:29
Engine Block Shake - VW BORA TDI - saagaloo
I have noticed that when I start my VW BORA PD Sport 130BHP from cold that the engine rocks for a while until the car warms up. From then the rocking disappears. The performance of the car is not affected by this. I took the car in to an independant VW specialist who told me injectors were at fault and that I had too options:

1) replace the injectors at a cost of ~£2000
2) Have them taken out stripped - cleaned and rebuilt at a cost of £900

Neither of these options seemed good to me - i also got the spiel about how if i ignored the problem it would be detrimental to the car

I then took it into VW who who did an assessment and even did a comparison with another bora of similar age and miles. They said they could not find anything wrong with it. Told me to comeback once a problem developed.

So either VW are wrong or the specialust was lying ********

So was wondering if anyone else have similar problems with their Bora from cold start?
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Fri 14 Jan 2005 17:23
Engine Block Shake - VW BORA TDI - Peter D
If it was an injector problem it probabley would not improve with temperature, It may be a choke problem but I would start with a a good injection cleaner i.e. the VW part number one which alludes me at the moment. Give it a good dose, prior to a good 40 to 50 mile run that you had to do anyway. Also use Shells performance unleaded. then see how it goes. Come back here with results. Well worth checking the Temp sensor is not dying and keeping the choke on too long. i.e. too long give you roughness on all pots a sticking cold injector give a much lower frequency rock. Regards Peter
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Fri 14 Jan 2005 17:33
Engine Block Shake - VW BORA TDI - borasport20
Also use Shells performance unleaded.


In a turbodiesel ? I wouldn't recommend it

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Fri 14 Jan 2005 18:10
Engine Block Shake - VW BORA TDI - Civic8
I dont have a VW.But my diesel had 2 glow plugs down which caused the same thing..replaced them all. not had a problem since..May be your problem??
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Steve
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Fri 14 Jan 2005 18:31
Engine Block Shake - VW BORA TDI - bazza
I can't help thinking this doesn't add up. You say performance isn't affected? So therefore unlikely to be injectors I think. Yes, possible starting on maybe 2 or 3 cylinders will cause initial unevenness, but you should be able to hear if it's on all four or not. I wonder if an engine mounting is tired or broken? I suspect your specialist may see an easy profit,(especially as VW have had a look without finding anything) so eliminate the simple, cheap things first. And maybe get a diesel specialist to take a look before forking out a grand or two!
Baz
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Sat 15 Jan 2005 23:27
Engine Block Shake - VW BORA TDI - paulb {P}
Seems to be a characteristic of this particular engine - I had an '02 SEAT Ibiza with the TDI 130 engine, which did this intermittently, although it was usually when the engine was warm - you'd pop the bonnet up and the whole block would be wobbling from side to side. I found that blipping the throttle enough to take revs up to 2,000 usually made it go away. I did wonder if the ECU was messing around slightly, although it ran fine otherwise and the dealer couldn't find a fault.
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