Dark smoke while accelerating

Question

1998-2001 Audi A6

he second generation Audi A6 was introduced by the German manufacturer in 1997. The first novelty about this model was the all-new Volkswagen Group C5 platform, featuring a completely revised design and newly-developed suspension. Then there was the new optional 5-speed tiptronic automatic transmission.

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Sam Saw @samsaw

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投稿日: 2024年6月3日

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Dark smoke while accelerating

Audi a6 allroad 2,5 tdi. Feels like it losts power too in torque.

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I assume it's a black smoke, but to be sure can tell me the color of the smoke it's either black or blue.

Vertinhol さんによる2024年6月6日

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I assume it's a black smoke, but to be sure can tell me the color of the smoke it's either black or blue. — Vertinhol

bill @ruggb 評価: 6.6千 5 5 · Answer 1 · 2024-06-06T16:03:35-07:00

bill @ruggb

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投稿日: 2024年6月6日

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It is either burning oil or burning too much gas. Black smoke it too much gas - or diesel.

Could be bad piston rings or valve seals for the oil, or bad injectors or sensors for the gas.

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I did a Carbon clean in the exact same model and worked some what then I had a mechanic remove the part of the exhaust mechanism that puts some of the exhaust back into the cylinders which worked perfectly and gave a little more power.

Brad Cooke さんによる2025年9月14日

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1998-2001 Audi A6

Dark smoke while accelerating

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