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Gaby57190

Exhaust problem on Renault Laguna Diesel

Hello everyone, I own a 2009 Renault Laguna with a diesel engine and 77,000 km on the odometer. I've noticed that the check engine light is coming on and the message 'injection failure' is displayed. However, the car drives normally without any loss of power. The Carly app indicates an exhaust problem, but I don't know what to look for at all. Has anyone ever encountered this problem or have any advice on what I should check? Thanks in advance for your help!

(Translated from French)

Summary of the thread

A 2009 Renault Laguna diesel owner is experiencing a check engine light and 'injection failure' message, though the car drives normally. The Carly app suggests an exhaust problem. Possible causes include clogged or leaking fuel injectors and issues with the exhaust system, such as damage or leaks around the catalytic converter or DPF. It's recommended to inspect these areas and consult a professional mechanic if the problem persists.

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1 comment(s)

CarlyMechanic

Start by checking the fuel injectors for any signs of clogging or leaks, as these can trigger the 'injection failure' message. Also, inspect the exhaust system for any visible damage or leaks, particularly around the catalytic converter and DPF (Diesel Particulate Filter). If you're unsure or the issue persists, it's best to have a professional mechanic take a look, as driving with a potential exhaust issue can be unsafe. Let us know how it goes or if you have further questions!

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RENAULT

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LAGUNA