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Originally Posted by chiranjitp ..the SA told us that for new gen Hyundai cars, alignment can only be perfectly set at HASS, as some calibration needs to be done with the diagnostic tool (OBD tool). Upon asking for more details the SA told me that if we were to set the alignment from outside, the car won't have any issues of tire wear but will pull to one side (as the OBD calibration isn't done). |
I would like to differ here. Initially I too thought that the Steering of Elite i20 needs calibration after every wheel alignment. But I was wrong.
When I got the Lower Arm Bushes and Ball Joint replaced at FNG at 67909 kms on 26-01-2017(due to non-availability of Complete Lower Arm of Elite i20 at that time), I got the Wheel Alignment done outside HASS but did not feel the need to calibrate the Steering as the Steering did not pull to either side (due to untouched Tie Rod Ends while replacing Lower Arm Bushes) and the Steering Wheel too was not off-center.
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Originally Posted by chiranjitp ..the SA only did the steering calibration from the OBD. After the steering calibration was done, the steering pull (to the right) simply vanished, they didn't even put her on the ramp. This is the first time I have come across such a thing. Is this system exclusive to Hyundai cars or do some other modern cars have it? Does anyone know why this steering calibration is necessary after an alignment for new gen Hyundai cars? |
I don't know what did the trick here. But the pull vanished due to the fact that the Steering Angle was corrected. But what about the Toe values? Even if the Steering Wheel is calibrated, that does not auto-correct Toe Settings.
If the Steering Wheel is kept Straight and then the Wheel Alignment is done, the question of Calibration of Steering does not arise.
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Originally Posted by audioholic Steering angle sensor should be reset in these cars since they have some sort of assisted centering for the steering. Hence, if your alignment shop cant lock the steering in dead straight position before they adjust toe, it will result in a slightly off centered steering. The EPS will read steering angle data from the SAS sensor and apply corrective torque which results in the pull. Hence, usually once the alignment is done, the SAS sensor is reset so that it indicates the steering is centered.
It is also necessary on cars which will come with ESP, Active steering etc since they consider steering angle to determine in which direction the car is moving towards along with Yaw. |
This is what I too want to convey. If the Steering Wheel is kept Straight before adjusting Toe, there is no need to Calibrate the Steering after Alignment.
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Originally Posted by motorguy What I do for my Elite i20 is I first do the alignment at Nikhil's place (TBHP member) at Madhu's Enterprises. Since Nikhil had mentioned to me sometime back that their Hunter alignment machines do not have the steering sensor calibration, they can do the wheel alignment but not the steering sensor calibration. |
Hey buddy, you can just tell Nikhil to keep the Steering Straight Ahead before adjusting Toe and then do the Wheel Alignment. This will eliminate the need to Steering Calibration.
To all,
I got the Lower Arms- Left and Right replaced again at 136372 kms on 01-08-2018 along-with Both Tie Rod Ends at FNG.
At that time, the Local Wheel Alignment Guy did not keep the Steering Wheel Straight before adjusting Toe which resulted in car pulling to Right.
Used the car in that condition for around 1440 kms and 20 days. After that again got the Wheel Alignment done at same Place but from different mechanic. And Voila! the Pull got vanished. I had just told the mechanic to keep the Steering Straight before doing Wheel Alignment. The Left Wheel had Toe difference of 11 Points which resulted in Pull to Right initially.
Now more than 4000 kms have been clocked without any pull. The Steering Calibration is not done till date since the car was purchased. Touchwood.
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Originally Posted by vijayk I20 Elite 2014 – Asta Diesel – AC cooling coil replaced:
If any similar experience at any number of kms or years, please post. |
I have got the AC Expansion Valve replaced for our Elite i20 Asta Diesel on 11-09-2018 at 140302 kms.
The said Valve is in Compressor itself. The Compressor was not switching ON. Hence showed to local AC Guy who traced it to Expansion Valve. He replaced it in front of me within 1.5-2 hrs.
The gas was released, compressor removed, Valve replaced with new one, new gas filled. Cost Rs. 4500/- including Valve (which was bought by him from HASS
![LOL](https://www.team-bhp.com/forum/images/smilies/LOL.png)
). Now the AC is working like a charm.