LuckyLuke

Black smoke and loss of power in Renault Laguna: Possible fuel pump problems

Hey guys, I'm worried about my Renault Laguna (petrol engine, year of manufacture 2012, 143032 kilometers on the odometer). Anyway, the thing is now showing symptoms like black smoke when accelerating, the light from the engine is on, the engine just shuts off and the power drops. The engine runs rough, there are jerks when accelerating, poor fuel economy, the exhaust smell is really strong and there are stalls when idling. I think the fuel pump is broken. Have you ever had similar problems and what was your experience with the garage? I didn't have a good experience last time. I'm really looking forward to your answers! Thanks in advance!

(Translated from German)

A Renault Laguna is experiencing issues such as black smoke, loss of power, rough engine performance, and strong exhaust odor, which may indicate a faulty fuel pump. These symptoms align with a similar case where a fuel pump module replacement resolved the problem. It is advised to have the vehicle checked by a garage promptly to prevent further damage.

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4 comment(s)

Hello, I recently had a similar problem with my Renault Megane (petrol engine, year of manufacture 2015). I also had a faulty fuel pump module. The symptoms you describe sound very similar to mine: a restless engine, reduced power and a strong exhaust odor. The black smoke and the disturbances during acceleration and idling fit exactly. The issue with the fuel pump module is unfortunately quite serious. If it is defective, it affects the entire operation of the engine and can cause real damage in the long term. In my case, the workshop replaced the module. It took a while, but since then the car has been running again without any problems. So I would advise you to go to the garage as soon as possible and have it checked. Don't let your last bad experience put you off - a faulty fuel pump module is nothing to take lightly. Good luck, hope I could help!

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Hey, thanks for your quick reply! It doesn't sound too good but at least now I have an idea of what I can expect. Also, do you happen to remember roughly what you paid for the repair? And has anything else come up since replacing the fuel pump module? Best regards!

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Hi, sure, no problem, I'm happy to help! So, replacing the fuel pump module in my garage cost me around €640. It's not exactly cheap, but since then the fuel pump fault has been fixed and my car is running like clockwork again, with no further problems. It was the right decision to have it fixed, even if it was a bit expensive. Good luck with your Laguna and don't worry too much. Sometimes it just happens that parts have to be replaced. Best regards!

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Hey, thanks for the info! 640 is a lot of money, but I think if it solves the problem, it's worth it. My car means a lot to me, so it's important for me to get everything right. I just hope my experience with the garage is better this time. I'm really glad you shared your experience with me. You really helped me! I will make an appointment at the garage as soon as possible. Wish me luck and thanks again for taking the time to help me. You are really great. Greetings back!

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RENAULT

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LAGUNA