Having problems with your 2004 Renault Sportwagon ?
Black smoke coming from exhaust but car is running, have changed filters but no change.the car is renault megan dti 02
Black smoke usually means a rich mixture. For some reason the car is getting too much fuel. If the check engine light is on then take it to a shop with a code reader. They can tell you what sensor needs replacing. These newer cars are usually totally computer controled so if a sensor goes bad they will adjust the mixture incorrectly.
Is this a diesel, I assume so by the DTI, if so you need to have the injectior's tested for leakage.
Repair Help & Product Troubleshooting for 2004 Renault Sportwagon
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