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451 Gear Change Motor Fault

Mod Details
PremiumYes Difficulty Mod ID1496 Creditevilution For451 Fortwo Linkhttps://www.evilution.co.uk/mod/451-gear-change-motor-clean.htm Copy to Clipboard

Gear change motor failures are becoming a lot more common now. There are 2 motors. The 1st motor controls gear 1, gear 3 and gear 5. The 2nd motor controls gear 2, gear 4 and reverse. One will generally fail so you’ll normally have issues with alternate gears.  It’s possible but rare that you lose just 1 of the gears.

This is the gear change motor found on the 451 gearbox. It sits on top of the gearbox so it’s hard to see. To get to the motor pack, you have to remove the airbox. Then it’s just 4 bolts and 2 electrical connections.

When you flip it over, you notice that there are 2 independent cogs. That’s because there are actually 2 motors.

1 motor shifts Reverse, Gear 2 and Gear 4. The other motor shifts Gear 1, Gear 3 and Gear 5. So, if you have issues with either odds or evens, chances are it’ll be a gear change motor issue.

Each motor has a cover that can be pulled off after removing 2x Torx25.


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