D.I cassette replacement on a 9-5 Aero

[addsvrs]

May or may not be of any interest....
Just replaced my D.I cassette on my 53 plate 9-5 Aero. Had a intermittent engine light on, fault codes read as coil pack 1 error (something like that), I thought it ran fine but the thought of sudden engine failure made me get one.

Part numbers - mine was 9197559 but i replaced with 55559955, both are interchangeable.
Fitting took literally 10mins, even for a ham fisted person like me.

Although it maybe a placebo effect it feels a lot faster, better response throughout the rev range and mpg has improved. The 1 i removed had a hairline crack in it, not sure if that was the cause, but keeping it in the boot as an emergency 'just in case' one.

[moustache]

The DI cassette is a very common issue, causing misfiring etc

Cracks are very common and when I bought my Aero a few weeks back I was advised to buy a spare DI 'just in case'. They can fail without warning and leave you stranded. Shame they are £200 for a genuine new black one. Not worth buying an aftermarket one by all accounts.

[addsvrs]

The aftermarket ones are worse apparently, mine is a genuine Saab one so hopefully will never need the spare.

[TwyRob]

I have a spare in the boot for my b204 Saab 9000. Bought two used ones that were known to be good when mine went last year. I couldn't justify full price for a sub £600 car. Used ones can be good value, I got two for half the price of a new one. Just need to be sure that they are working well, taken off an accident damaged car for example.

[FraMac]

Swapped mine as it had a crack and intermittently put the management light on. £40 from ebay. All sorted.