GrandeOak

I hope to finish up a front-end refresh this weekend and need to schedule an alignment for my 2005 CTT.

I have read that the a proper alignment includes calibrating the steering angle sensor using PIWIS.

My question is what does the steering angle sensor do and what are the consequences of not calibrating during the alignment? Assuming it may trigger error codes/lights and affect PSM?

I am waiting on confirmation from indy of they can calibrate it before deciding between indy at $195 and stealership at $325.

Dan87951

If indy can do it, go with them. Otherwise spend the $325 and have the dealer do it. Why go through all the trouble and not have it done right?

GrandeOak

Forget to mention - dealer said they are 2 weeks out maintenance appointments.

Porsche North Scottsdale btw

Dan87951

I would be shocked if your indy doesn't have the proper computer to calibrate the steering angle sensor. If they can't do it there has to be someone local who can. Two weeks out? That sucks. Hopefully you have another car you can drive so you don't mess up the tires on the beast.

wrinkledpants

It's not a calibration, per se. They use PIWIS to read the steering angle sensor to ensure it reads zero throughout the adjustments. They'll also make sure the suspension is perfectly level and adjust if necessary. Most other shops will simply eyeball the steering wheel.

It's one of those tasks that's worth going to the dealer if you can afford the wait.

v10rick

Had 4 wheel alignment done by tire shops on both my 2004 CS and 2009 GTS. Steering angle sensor was never been mentioned. The tire wear and steering wheel position were as expected.

Dilberto

No need to calibrate "steering angle sensor" Just leave it ALL DAY at a good independent shop and the results will be dealer-perfect.....for a FRACTION of the $360 cost.

user 83838290

Stealership here did alignement on mine and it didn't feel good at all. Had them redo it, still a ****ty feel. Spent 260 eur.
Went to a local tire shop, they did it perfectly on the first try at 90 euros IIRC.