I am after some advice if at all possible please? I have recently brought an 06 plate Vectra 1.9 CDTi. To cut a long story short I only had the car for a short while when I experianced a loss of power and the spanner light came on. Car went into local VX dealer (as closest garage to me that was VAT registered) and fixed under warrenty.
Was told the DPF had blocked causing pressure to build up in the system which had taken out the EGR valve, swirl actuator and cracked the manifold. ALL these parts were replaced and a manual regen done on the DPF - thankfully at no expense to me!
I picked the car up on monday and it seemed fine, did about 50 miles in it (short journeys) over monday/tuesday. Set off on wednesday up to meadowhall on M1 (in sheffield from my house in nottingham). About 20 miles into the journey I notcied the the car was struggling to get above 55/60mph. Pulled over turned off (no lights on) started up again and like someone had pressed a reset button absolutely fine for a few more miles then the same again. Took back the the dealers suspected loose / split pipe - tightened and checked all seemed ok. Picked car up at 5pm drove home and within few miles did the same again but this time with spanner light on.
Took back this morning and just had a phone call to say they have done another manual regen on DPF (f.o.c) as this was blocked again? Tried telling lady I spoke to that had only had it back a day and a half and covered about 70 miles but she was adament that its the 'short journeys' I have done that has casued it to block up again??? She is recommeding some kind of fuel adative to use every 3 fill ups which to be honest can't see it making any differance!
What should I do when I collect the car? Will try and get the exact fault code out of them for a start...... Can't beleive it would have / should have blocked up again so quickly?
Dont know whether to put some of this adative in and go for a blast up the M1 or take it to another garage as I really dont have much confidance in the stealer (makes me wonder why they would do the regen f.o.c again if my 'fault')!
Thanks in advance for any info - much appreciated!