Skyhook suspension control unit


New Member
I bought a 2011 GTS Auto (skyhook) with 50k on the clock (chassis 055750)and though it went round corners well, I was disappointed with the ride quality. Having replaced various bushes etc and had the geometry set properly the car still bounced a bit and the back end still seemed to want to overtake me on bad roads.

I suspected the rear shocks (pn 254814) were on the their way out and managed to obtain some shocks (pn 286946) and roll bar (pn 216711) from a newer car (2014 Sport Auto) as an experiment. This has sharpened it all up and it handles really well but the ride is now a little harsh for longer journeys.
I suspected the suspension control unit might not be compatible with the newer shocks so went to upgrade that only to find the unit on the car was not what should have been there (pn 290745) but was the one used on the later car (pn 285374).
Can anyone shed light on this? Was this unit used on earlier cars or has someone been at the parts bin?