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Join Date: Apr 2011
Location: United Kingdom
Wheel Alignment Question / Information
Does anyone know where I can find the latest wheel alignment specs for a 2006 159 SW 2.2JTS Lusso? The car's going-in for a full 4 wheel alignment on Friday and I want to make sure we have the latest settings, not some outdated ones. I'll need camber and toe specs for both front and rear and - very importantly - the vehicle loading required.
I notice that I've not seen mention on here of vehicle loading with respect to suspension geo. (Please correct me if it's something I've missed). Loading is critical to getting a proper setup as suspension geometry varies significantly dependent on the load in the vehicle. In particlar, loading-up the vehicle increases the front toe-out. As a consequence, if the tracking is set with too little load in the car, it will cause the suspension to run far too much toe-out under normal driving conditions. I wonder, could this be the cause of the inner front tyre wear that's often a massive issue with these cars?
Manufacturers normally issue camber/toe specs together with allowable tolerances (+/-) for a given loading in the vehicle. The specified loading is often with driver and front passenger on board and a full tank of fuel (I think this is the DIN standard) but not always. BMW, for instance, requires 4 passengers (or equivalent in weights) and a full tank to correctly align some of its saloon models. I have no idea what the Alfa spec is with respect to loading.
I'd be really grateful for a link to the published specs and I hope my observations on vehicle loading will spark some debate and discussion.
Ian from Manchester, UK
(Certifiable Car Nut)!
Current Alfa: 159 Sportwagon 2.2 JTS
Previous Alfas: 156 2.5, 164 3.0, 75 3.0
Other Current Cars: Porsche 997S Gen-2 PDK, BMW Z4 sDrive 23i
Last edited by Ian_UK1; 06-07-11 at 12:29.