Amarok - speedo or diff ratios for larger wheels

[Guest001]

Cool story...

So you haven’t technically altered your Speedo... you’ve changed tyre size to compensate... the OP wants to fit 3 inch larger tyres and then recalibrate his speedo so it reads correct...

No I didnt do it as it is an illegal size

And you didn’t answer anything about changing diff gears, nor anything about recalibrating a speedo.

I originally commented on the code red because I did read it, and was pointing out that the AMAROK is a light vehicle... your Tiguan is a passenger car... they conform to different standards.

Back to the recalibration topic, Have you actually done that, Connected to the ECU via the OBD2 port to recalibrate the ECU?? I highly doubt it.


Yes I did an alteration in a Control Module to bring it to being bang on at 100kph

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Didnt mention altering diffs etc as out of my skill set but was pointing out that his tyre size may be illegal and doing all of what he wanted to do may be a waste of money if he is defaulted for the tyres

[doinitsideways]

He could go through a SSM and get it approved ($$$) Or like some people, run the risk of a fine... but I’m not his dad, so I honestly don’t care if he wants to do something illegal...

OP, you will probably also need aftermarket UCA’s to clear the tyre sidewall as well as decrease your wheel (rim) offset from +45 to +20 to minimise scrubbing on the chassis. This will increase your track by 50mm plus what ever the extra width of the tyre size is over OEM, QLD only allow track increase of 50mm without engineering (Lane change test) which will set you back about $900.

Your also going to need a suspension lift of 35mm... (any higher
And you will need a diff drop as well.)

I’m looking at the SCF 43mm body lift to go with my 35mm suspension lift already installed, however QLD do not allow body lift without engineering (that $900 I mentioned above).

I am then also just starting to research 33inch (roughly 3 inch over OEM) tyres myself to go under once that is done, but it has led me to SSM (second stage manufacturing) which generally needs to be done prior to the vehicles first registration, but there’s a few loopholes in QLD I’m looking into)


Hillbilly, can you elaborate on how you modified a module? I’d like to understand what you did and how?


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[Guest001]

Hillbilly, can you elaborate on how you modified a module? I’d like to understand what you did and how?


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Read up in the VCDS threads

Have no wish to get doubted any more