F-Type ( X152 ) 2014 - Onwards

Ride height recalibration

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Old Jan 8, 2026 | 08:23 AM
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Default Ride height recalibration

Hi all - been researching the adaptive suspension (ISCM) and came across some older threads on folks who said they recalibrated their ride height sensors after installing lowering springs. Has anyone on here done this after lowering their car? I, for one, just slapped on my springs one afternoon and let it be - wondering if I could improve handling and ride characteristics by resetting my neutral ride height with SDD. I'm on H&R springs which lower the car a good bit (advertised around 1.2") and I imagine that could impact how the ISCM manages the dampers.

Related question: anyone use the pre-setup SDD installations from these guys?

Jaguar Land Rover IDS / SDD – V138 Kit – British Diagnostics

Thanks,
Brad
 
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Old Jan 12, 2026 | 11:35 AM
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Originally Posted by bfrank1972
Hi all - been researching the adaptive suspension (ISCM) and came across some older threads on folks who said they recalibrated their ride height sensors after installing lowering springs. Has anyone on here done this after lowering their car? I, for one, just slapped on my springs one afternoon and let it be - wondering if I could improve handling and ride characteristics by resetting my neutral ride height with SDD. I'm on H&R springs which lower the car a good bit (advertised around 1.2") and I imagine that could impact how the ISCM manages the dampers.

Related question: anyone use the pre-setup SDD installations from these guys?

Jaguar Land Rover IDS / SDD – V138 Kit – British Diagnostics

Thanks,
Brad
Pushing this back to the top, anyone? Or do we all just lower our cars and let it go.

Also any SDD folks out there?
 
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Old Jan 12, 2026 | 12:22 PM
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The way ride height calibration works on these cars, you have to input the value which keeps it in the correct range, if not you will have to correct what is wrong and then run calibration again. So you can't 'calibrate' it to the new lowered height, as the car won't accept a value that far out of range. Your best bet is just to leave it alone, if you run the calibration with actual measurements from lowering it won't take, and you'll have to lie to it and give values in the expected range. Since we don't have variable height on the steel spring cars anyway, there's not much you can change.
 
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Old Jan 12, 2026 | 12:47 PM
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Originally Posted by RoverJoe
The way ride height calibration works on these cars, you have to input the value which keeps it in the correct range, if not you will have to correct what is wrong and then run calibration again. So you can't 'calibrate' it to the new lowered height, as the car won't accept a value that far out of range. Your best bet is just to leave it alone, if you run the calibration with actual measurements from lowering it won't take, and you'll have to lie to it and give values in the expected range. Since we don't have variable height on the steel spring cars anyway, there's not much you can change.
Makes sense, thank you!
 
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Old Mar 12, 2026 | 02:41 PM
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Originally Posted by bfrank1972
Hi all - been researching the adaptive suspension (ISCM) and came across some older threads on folks who said they recalibrated their ride height sensors after installing lowering springs. Has anyone on here done this after lowering their car? I, for one, just slapped on my springs one afternoon and let it be - wondering if I could improve handling and ride characteristics by resetting my neutral ride height with SDD. I'm on H&R springs which lower the car a good bit (advertised around 1.2") and I imagine that could impact how the ISCM manages the dampers.

Related question: anyone use the pre-setup SDD installations from these guys?

Jaguar Land Rover IDS / SDD – V138 Kit – British Diagnostics

Thanks,
Brad
Did you ever find an answer? I have the same issue after installing HR spings
 
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Old Mar 12, 2026 | 06:53 PM
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Originally Posted by DRIVESAFE
Did you ever find an answer? I have the same issue after installing HR spings
Hmmm - I never really had an issue per-se, was just more concerned with performance calibration. No errors or anything - my guess is when you (or whomever installed the springs) were in there they may have wacked one of the sensors?
 
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