WHPH28

1bad540

do the sensors need to be programmed to the car? Or should they be picked up automatically?

WHPH28

They should not. Everytime I switch tpms or put new ones in, you drive about 1/4 mile and they all sync up with each other. Sometimes that is not even needed, as soon as you start the car they will be good.

1bad540

awesome!!!!

1bad540

terd at the tire place told me another 80.00 to sync them to the car.maybe he didn't realize or maybe hes a terd.

WHPH28

They don't need to be synced. Have them install them and then you drive around. Don't let them do it so they can say they still need to do it when they sync on their own but they want to make more money off of you. If at that point they don't sync, have them do it, but they should automatically sync.

1bad540

Awesome thanks!! Did the car move at all when you changed the links?

WHPH28

No, the links are not holding anything up and ther eis not pressure on them. It's just used as a height measurement to tell the car how high or low to to be, when the car is on. Once you turn the car on, you will see it will lower itself.

Mike5215

^Exactly. "Link" is probably the wrong word, since there are such things as actual working links in some suspensions. This "link" is basically a small metal bar that connects the ride height sensor to the actual suspension.

As the suspension travels up or down the bar travels with it and pushes down or pulls up a lever on the sensor, varying its output voltage (kind of like a dimmer switch on a lamp).

Because the bar is a fixed length, the Airmatic/ABC controller knows where the car is sitting height-wise based on the voltage output of the sensor, and then it makes its adjustments as needed to keep the car at the "right" height.

If you replace that fixed-length metal bar with a bar with an adjustable length, you can cause the sensor to send information to the controller that the car is sitting higher than it actually is, which causes the controller to respond by lowering the car.

The "links" are not load bearing and not a part of the working suspension. They could be made of plastic and still work as intended.

1bad540

Thankyou kindly for all your advice guys, I also appreciate you posting pictures and making me spend money that I was trying not too.. In my defense this has been the longest ive owned a car and not changed the wheels!!! could also be ive been renovating my house and most of my funds are going to that!!

WHPH28

No problem...good luck!

1bad540

Tire place is telling me 255-35-20 and 275-35-20 may not be right and reco'd a
245-45-20 and 275-40-20


Are you guys 100% sure the 35 is correct?

WHPH28

These sizes are oem..you can run whatever size you and if the front and rear tires are not within 3% of each other you start doing damage to your car. You can technically put on whatever you want but if you want to be oem and correct, then we are telling you the correct sizes.

1bad540

Cool, and that's for 4 matic as well? Just checking!!! Guy kinda has me 2nd guessing myself!

WHPH28

If you want to run staggered on 4matic they are the correct sizes, however the "dealer" does not recommend staggering on 4matic but it is done with no issues as many people on here do it.

2 options:

255/35/20 front and rear
or
255/35/20 F, 275/35/20 R

1bad540

Thnaks! so that leaves the rear 1/2" taller, I guess that's within spec.?

WHPH28

Tires are correct.

http://www.sizemytires.com/calculators/compare

1bad540

cool thanks!