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BrunoFuchsFan

Citroen DS5 starting problems: Possible malfunction of the main relay of the engine control unit

Car won't start

Hey guys, I have a problem with my Citroen DS5 (gasoline, year of manufacture 2015). The car just won't start anymore. It occurred to me that it might be due to a malfunction in the main relay of the engine control unit. Have any of you ever had a similar problem and can help me? Your experiences with the workshop and how they rectified the fault would be particularly interesting. Thank you in advance.

(Translated from German)

10 comment(s)


SchulzLena99

Hello, I had a similar problem with my Citroen DS3 (gasoline, year of manufacture 2013). I have limited experience with cars, so I went straight to my regular garage. They identified the problem quite quickly and fixed it - it was actually the main relay that was faulty. The repair cost me 120 euros. Do you need any more information about your vehicle to help you? Maybe I've overlooked a few details that could be important. Let me know if you'd like me to go into more detail or if there's anything in particular you'd like me to discuss.

(Translated from German)

BrunoFuchsFan (Author)

Hey, thanks for the reply. Good to know you had the same problem and it was solved by replacing the main relay. My DS5 now has 192522 kilometers on it and the last service wasn't too long ago either. I think I'll pay my garage a visit and see if they can help me. No, I don't need any more information. You've really helped me!

(Translated from German)

SchulzLena99

Hey, no problem, that's what we're here for. Glad I could help! The mileage on your DS5 seems to be high and it could be that certain parts are just giving up the ghost. The main workshop should be able to fix it. Please let me know if everything worked after they changed the main relay. Good luck and I hope that your car will soon be running like clockwork again. Keep at it and don't get discouraged!

(Translated from German)

BrunoFuchsFan (Author)

Great, thanks for the encouragement! I'll definitely let you know how it goes once the car is fixed. Hopefully it will be running like clockwork again soon. Thanks again for the help and your advice. You've really minimized my worries. Take care!

(Translated from German)

Erwin1972

Citroen Ds5 hybrid will not start after battery at engine changed and main switch battery pack taken off for safety Who can help me if you want to start the car it says failure in engine turn off engine But he does not even start does not even go around

(Translated from Dutch)

CarlyMechanic

@Erwin1972

Citroen Ds5 hybrid will not start after battery at engine changed and main switch battery pack taken off for safety Who can help me if you want to start the car it says failure in engine turn off engine But he does not even start does not even go around

It sounds like there might be an issue with the battery connections or the battery itself. Start by checking if the battery terminals are clean and tightly connected. If that doesn't solve the issue, you might need to check the battery's health. If you're not comfortable doing this yourself, I would recommend taking your car to a professional mechanic for a thorough inspection.

Samuel

My ds5 ( registration year 2014) neither the electric motor nor the diesel motor will not start anymore and it does not give any sign of life does anyone know anything?

(Translated from Italian)

Best Answer

CarlyMechanic

@Samuel

My ds5 ( registration year 2014) neither the electric motor nor the diesel motor will not start anymore and it does not give any sign of life does anyone know anything?

Check the condition of your car's 12V battery first, as a weak or dead battery can prevent both the electric and diesel systems from starting. Ensure the battery terminals are clean and securely connected. If the battery is fine, inspect the fuses related to the starting system. If the issue persists, it might be best to consult a professional mechanic, as it could involve more complex hybrid system diagnostics. Let me know how it goes or if you have any further questions!

pkoukos

the 2012 citroen ds5 hybrid 4 model does not start with the electric motor but only with the diesel engine....and the hybrid system is not involved at all...can someone answer what is wrong with it?

(Translated from Greek)

CarlyMechanic

@pkoukos

the 2012 citroen ds5 hybrid 4 model does not start with the electric motor but only with the diesel engine....and the hybrid system is not involved at all...can someone answer what is wrong with it?

Check the condition of the hybrid system battery first, as a weak or damaged battery can affect the operation of the electric motor. Also, make sure the connections are clean and secure. If the problem persists, it is best to contact a professional mechanic for a more detailed diagnosis of the hybrid system. Let me know the progress or if you have any further questions!

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