My 508's weird electrical fault has three garages stumped, does anyone know a Peugeot specialist in Dubai?

[keithmarsden]

I've been going in circles with my 2016 508 GT for nearly two months, it started with the central locking pulsing randomly and the folding mirrors refusing to unfold on hot mornings, after a week the stop start system threw a permanent fault and now the dashboard beeps at me every time I put it in reverse even though the sensors are clean, I’ve already been to three different workshops in Al Quoz and Rashidiya that mostly handle Japanese cars, the first reflashed the BSI and the problem came back in two days, the second replaced the brake pedal switch thinking that was confusing the system, the third just shrugged and said French electronics are a nightmare and maybe I should trade it in. I'm honestly not ready to give up on the car because the engine and gearbox are still smooth, but I'm exhausted from paying diagnostics fees without a fix, so I'm really hoping someone here can point me toward an expert Peugeot repair service Dubai that actually understands the quirks of these electrical systems and can trace a CAN bus fault without just throwing modules at it. If you've had a persistent gremlin on a 508 or even a 3008 resolved by someone who had the proper Lexia diagnostic tool and the patience to use it, please share their name, I'd rather pay for a proper diagnosis once than keep funding guesswork.

[yllekzan]

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[haydeewicking]

Three garages and still no fix usually means nobody has looked at the whole network. BSI reflash, then brake switch, then "trade it in" sounds like parts-swapping to me. I'd want a written diagnostic report before paying anyone else.

[hayfawiddicombe]

Hang in there, a smooth engine and gearbox are worth saving. Those French electrical gremlins are annoying but almost always traceable if the person has the right tool. Find a workshop that mostly does PSA cars, not a general Japanese-car place.

[hazelwightman]

Had something very similar on my old 3008, random locking and the parking sensor beeping for no reason. Turned out to be a corroded ground point near the rear and a weak battery, nothing to do with the modules. Cost me under 300 dirhams once someone actually checked voltage drops.

[hazelynwigfall]

Pulsing central locking plus stop-start faults plus reverse beeps points to low or unstable voltage on the network, or a dodgy BSI ground. Have the battery tested under load and check the IBS sensor on the negative terminal. Then get someone with Lexia or DiagBox to read live data and the fault history, not just clear codes.

[hediawigfull]

Did any of the three actually plug in Lexia or DiagBox, or was it just a generic scanner? And has the battery ever been replaced or coded in? That stop-start fault on a 508 can hang on that alone.