It was purchased from a dealership in Swindon (1.5 hours away) however they’re not responding to emails!
The keys didn’t work when I viewed it, however the said it was the batteries and they’ll change them.
Silly question have you checked the key fob battery ?
So far I’ve tried:
1) Changing the batteries in both fobs twice: first with Energiser batteries, second time with Duracell batteries
What's the main car battery voltage like? Stuff like keyless entry can be one of the first systems to shut down if the voltage drops. Does the stop/start work ok?
As previously said, phone the dealer you bought the car from. They have sold a faulty car and have to rectify the issue or you can reject the car.
So you've bought a car from a dealer which had a fault present at the time, they said they'd fix it, it's still broken and you're looking at spending your own money to fix it? Why not pick up the phone and have a chat?
I have been in contact with them but only via email as I wanted written evidence of what’s been said. I agree I need to bite the bullet and just phone them. I’m a bit dubious about what they can do to resolve the issue if the Hyundai dealer couldn’t even fix it.
Is the battery the right sort, you hear of people not buying the expensive ones for stop start and only buying the cheaper ones that disable that functionality, could this be part of the issue?
I would check the battery code against the car to check its the right one
Few other considerations, did someone change the battery as they already had this fault, so they sold an already faulty car, after changing the battery to try to fix the fault
Do you by any chance have the details for the previous owner, could be worth contacting them
Do you know if the pat ex'd or sold to the dealer you bought it from directly or if the dealer picked it up from the trade/auction, if the previous owners sold directly to that dealer they are less likely to be cooperative unfortunately
Do you really like the car and is the functionality important to you, you could always offer to take a wadge in cash to offset the decreased value of the car with this fault, maybe £300 or so?
When the car launches next spring, it will have just half of its eventual engine line-up: a 2.0 petrol and this 2.0 diesel. Hyundai is pinning big hopes to the smaller-capacity units that are due next autumn, a 1.6-litre petrol emitting 149g/km of CO2 and a new 1.7-litre diesel – in effect a bored-out version of the motor already used in the i30 – that will emit 139g/km. They both use stop-start to achieve these figures.
What engine is it? Quick google brings up this: https://www.autocar.co.uk/car-review/hyundai/ix35/first-drives/hyundai-ix35-2.0-crdi-premium
Have you used the correct battery for the keyfob?
If the car was supposed to have an AGM battery and now doesn't, you'll find a few things likely won't work, predominantly being any Stop / Start functionality and keyless entry. Could be worth suggesting they try sticking an AGM battery in and going from there. Not cheap as batteries go though
If the car was supposed to have an AGM battery and now doesn't, you'll find a few things likely won't work, predominantly being any Stop / Start functionality and keyless entry. Could be worth suggesting they try sticking an AGM battery in and going from there. Not cheap as batteries go though