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Very High Co2 Read Out When At Mot Station ???

bigace69
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bigace69 Rookie

bigace69

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high i have just taken my 520se i 6 cylinder with m52 engine for mot only to find that the co2 level is at 2.49% which is way over i have heard it could be the cat playing up for which i would need a new one or could be the air mass valve ?? can anyone help have any of you had this on urs befor ???

Guest DazH

Guest DazH

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MY CAT was the problem with my E39 which had the exact same engine. VERY expensive repair either way you look at it. Mine was more obvious as the CAT made a crumpling noise under acceleration due to the honey-comb structure inside was mashed up

Daz

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