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Secondary Air Injection Pump

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PremiumYes Difficulty Mod ID1393 Creditevilution For450 Fortwo452 Roadster Linkhttps://dev.evilution.co.uk/mod/secondary-air-injection-pump.htm Copy to Clipboard

It is becoming more and more common for people to report a terrible noise for about 90 seconds on start up.

This is due to the secondary air pump. People with no actual clue often call this an EGR pump. This secondary air injection pump can be found on 700cc fortwos and Roadsters only. It is located in the engine bay, over to the right, next to the oil filler cap.

The first thing to try is to remove the end bolt.

Drip some 3 in 1 oil in there and replace the bolt. If the noise stops, the bearing was probably dry or dirty.

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