Engine seems to be misfiring, due to custom exhaust can hear popping much more frequent than ususal, always on decelleration, sometimes while holding speed.
Also on opening bonnet a kind of coughing sound can be heard on revving at beginng and quieter at end (only revving mildly)
Have recently had starting issues at randon, immobiliser appears to be functioning fine.
The coil pack is notorious for failure on these - if your car is the D7F the coil pack is top left on the engine as you look at it. Using gloves disconnect each HT lead in turn - the engine misfire will be easy to spot. Aftermarket coils are about £70.
John
December 2007
Automatic Answer
We may have found other answers which could help you.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix cars.