Wheel Alignment Question / Information - Alfa Romeo Forum
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(Post Link) post #1 of 4 Old 06-07-11 Thread Starter
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Wheel Alignment Question / Information

Hi everyone

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The car's going-in for a full 4 wheel alignment on Friday and I want to make sure we have the latest settings, not some outdated ones.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
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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.
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This post has all the data you need including a PDF of the manual describing 2 load conditions. You should use "Standard A" which is no passengers but a full tank of fuel.

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(Post Link) post #3 of 4 Old 09-07-11 Thread Starter
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Many thanks for the link.

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Providing the published unladen settings make allowance for the effects of load, then that is much simpler. I do all my own alignment, and have found that the settings in the link work well - particularly in repect of tyre wear on 17". Your comments about bump steer are generally true, but can vary from car to car - depends on rack height, and camber change geometry. Cars with strut front suspension are particularly susceptible, so possibly the 159's double wishbone set-up (albeit rather crude - wishbones/arms relatively short) may be better.
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