Secondary Air injection pump relay location on 451? - Smart Car Forums
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post #1 of 3 (permalink) Old 04-01-2013, 07:45 PM Thread Starter
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Secondary Air injection pump relay location on 451?

Hey guys. I just replaced a Secondary air injection pump on a 2010 451 and I still have nothing at the pump. I'm searching for the (K64) secondary air injection pump relay. I've already checked F36 (To the left of the battery) and i've got power there. I absolutely cannot find ANY information on where to locate this stupid relay. (Even WIS has no locations on it). So i'm reaching out to the forums.

Any help would be greatly appreciated.
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post #2 of 3 (permalink) Old 11-22-2013, 02:57 PM
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It's above the brake pedal toward the instrument panel. There are 2 relays together. It's the smaller of the two and a simple 4-blade headlamp relay. Hard to reach as its the upper one, but doable by feel or laying on your back. You can match it up at Advance Auto or AutoZone for $10. Mercedes wants $50.
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post #3 of 3 (permalink) Old 11-22-2013, 03:18 PM
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