Weak signal from key fobs

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My Name: big mistake

Contributor
Posts: 16
Joined: Thu Feb 18, 2021 8:56 pm
Model: C3 2006-2009, Facelift model
Year: 2008 (08)
Engine Size: 1.6 (16v)
Fuel Type: Diesel
Mileage: 89000
Trim Level: Exclusive Plus
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: DV6 16-valve diesel (92 PS)
Has thanked: 5 times

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>> Well, it passed an MOT with a few minor advisories. Managed to remove injector without force by the simple technique of carb cleaner and patience. Cleaned and new seals replaced. Key fob miraculously started working - both keys. I thought I'd celebrate but in the morning it was only activated by having the keys a few centimetres (max 5cm) from the ignition switch. So the keys work but not enough to lock the car from outside of a closed door. Any advice or tips will be greatly appreciated.
My Name: routemaster1

C3 Master
Posts: 216
Joined: Fri Mar 08, 2019 4:32 pm
Model: C3 2017-on. The new C3
Year: 2019 (19)
Engine Size: 1.2
Fuel Type: Petrol
Mileage: 300
Trim Level: Flair
Gearbox: Manual 6 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: EB2DT-EB2ADT PureTech 3-Cylinder (110 PS)
Been thanked: 63 times

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big mistake wrote: Mon Mar 08, 2021 6:40 pm >> Well, it passed an MOT with a few minor advisories. Managed to remove injector without force by the simple technique of carb cleaner and patience. Cleaned and new seals replaced. Key fob miraculously started working - both keys. I thought I'd celebrate but in the morning it was only activated by having the keys a few centimetres (max 5cm) from the ignition switch. So the keys work but not enough to lock the car from outside of a closed door. Any advice or tips will be greatly appreciated.
Both of our C4 Picasso keys have been causing problems in the last couple of weeks. In both cases unlocking failed, both by touching the handles and by pressing the unlock button. In both cases the car wouldn't start (keyless system) as it gave a 'key not present' alarm. In both cases it it started when the key was inserted in the holder. My C3 has a similar system but there is no holder, so if I have issues with that, I don't know where you place the key. Anyway, preplaced the batteries in both keys and both now ok.
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