OBD2 Error Code P4010 or 410 Secondary Air Injection System W163

TechnoWhizz

Active Member
Joined
Mar 18, 2016
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Rugby
Your Mercedes
ML500 W163 2003 Black LPG
Hi Everyone,
Just got a little Bluetooth OBD2 unit to try on my W163 ML500 (03). All works fine (within its capability) but it comes up repeatedly with this P4010 code. I do occasionally get a sluggishness from the engine under load, and now the little unit is attached and paired with my phone (Torque app), I get the error with sluggishness and sometimes not. I run LPG and normally notice no real difference with or without gas. To give an idea, on my last 5 mile run, the unit squauked up 4 times with the error but with no noticeable problem?

I am worried its to do with the Air pump and wondered how I or if can test it while stationary, or if it's important at all and could be blocked - the pump that it. OR if I'm worrying about nothing?

I can get it scanned with a pucker star unit, but not sure if its a transient fault.

Any ideas O knowledgeable ones?
 


www.W140.co.uk&www.r129.co
Specialist in parts for W140 and R129 Mercedes-Benz models.
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