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451 Cabin Air Recirc Motor Noise

Mod Details
PremiumNo Difficulty Mod ID1838 Creditevilution For451 ED451 Fortwo Linkhttps://www.evilution.co.uk/mod/451-cabin-air-recirc-motor-noise.htm Copy to Clipboard

Clicketty Click Click Click Click

Car’s on, recirculation button pressed. Lots of plastic clicking noises and then silence.

The problem is the motor that drives the recirculation flap. It sit’s on top of the cabin heater box inlet pipe which is over on the right hand side of the car.

However, you knew that because it’s blatantly obvious where the noise is coming from.

The problem is that, to access the motor, you need to remove the upper part of the dashboard. After that it’s simple, disconnect the electrical connector, remove some Torx screws and you can lift the motor out.

Fix Or Replace?

With the motor off, see if the recirculation flap moves freely and isn’t being hindered. There’s no point doing all of the work if the issue that caused the problem still remains. If it moves ok, great.

The noise you are hearing is damaged/stripped gears inside the unit. You could try opening the unit to see if there’s anything obvious to fix but I’d guess there won’t be.

Contact smart and see if they still sell the unit. The part number is A4518290001. Get the price and then look on eBay for 2nd hand ones. Just in case someone is selling a 2nd hand one cheaper than a new one. (again, unlikely).

If You Replace A Faulty Motor

Get in touch as I’d like to take it apart and put the info on here. I’m sure I have one somewhere but I can’t find it.