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I occasionally get the same messages on my 159. Everything still works fine and having had Alfas for decades just accept it as a rather endearing foible.
 

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Should add it’s a Qtronic and only get the Hill Holder and VDC Unavailable messages. I also get “insufficient Oil Pressure” for a second on cold starts which did make me crap myself at first bur I drove from SW France to the UK last month and the car still runs perfectly. Alfa electrics eh?
 

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Just managed to read the other posts, my browser seems to be working okay now. My brothers car didn’t have any brake lights sticking on. Intermittent or otherwise. So it looks like you have a faulty switch. If you go into live data on your diagnostic software you should be able to operate the switch with your finger and you will see its state change on the screen. This way it will confirm your fault before you change the switch.
 

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Discussion Starter #24
I know what you’re saying but this is an Alfa and and sometimes things are what you would expect.
When we had the problem with my brothers car an Alfa specialist mentioned the injector harness and I turned my nose up thinking what a load of rubbish. Anyway that was the fault. Just check the harness condition for any chafing and the connections. After all you’ve got nothing to lose. If it’s all good you’re no worse off.
Absolutely, I'll have a rummage at the weekend, still gonna change the brake switch as it logs as a fault(and I've already ordered it) Seems there might be a bit of a learning curve owning an Alfa...
 

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Discussion Starter #25
Just managed to read the other posts, my browser seems to be working okay now. My brothers car didn’t have any brake lights sticking on. Intermittent or otherwise. So it looks like you have a faulty switch. If you go into live data on your diagnostic software you should be able to operate the switch with your finger and you will see its state change on the screen. This way it will confirm your fault before you change the switch.
I sorry didn't make myself clear there, afaik the lights aren't sticking on , I've not looked to be honest, but the cruise contro/lhillstart fault is intermittent. I'll change the switch First,
and if that doesn't do I'll check the wiring..sounds like a plan!
 

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When you have two failure warnings (or more) it will be battery (or its earth). The system does a start up check and if it spots a voltage decrease you get the error messages.
 

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Discussion Starter #27
When you have two failure warnings (or more) it will be battery (or its earth). The system does a start up check and if it spots a voltage decrease you get the error messages.
Thanks, by two failure warnings do you mean any warnings? Even apparently unrelated ones? I get VDC, Hill start and Cruise control. VDC usually comes up just after starting up (but not always) and hill start as well followed by cruise control but sometimes it starts up with no warnings but after a while (anywhere from 2 minutes to half an hour) the cruise control light just goes out and Cruise control no longer functions, haven't checked the hill start in those occurrences yet.
 

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I'm guessing the brake pedal switch is also involved in the hill holder system so it would follow this is most likely the problem (or one of them!)
 

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Discussion Starter #29
I'm guessing the brake pedal switch is also involved in the hill holder system so it would follow this is most likely the problem (or one of them!)
Yes I would think so as the hill start automatically engages after the brakes are released on a gradient for a short period but it probably involves the clutch and probably the wheel sensors as well any one of which in error state would turn off the hill start etc
 

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Should add it’s a Qtronic and only get the Hill Holder and VDC Unavailable messages. I also get “insufficient Oil Pressure” for a second on cold starts which did make me crap myself at first bur I drove from SW France to the UK last month and the car still runs perfectly. Alfa electrics eh?

The oil one will probably be a real fault...quite a common one too...the seal between the oil pump and the oil pickup has gone hard and sucks in air until the pressure builds. Get it sorted or one day it won't go out and you risk cold start engine damage. I've done mine and two others...not difficult but fairly time consuming.
 

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Discussion Starter #31
Should add it’s a Qtronic and only get the Hill Holder and VDC Unavailable messages. I also get “insufficient Oil Pressure” for a second on cold starts which did make me crap myself at first bur I drove from SW France to the UK last month and the car still runs perfectly. Alfa electrics eh?
Funnily enough I had an Audi A3 which was a lot worse, used to drive along with veritable disco of flashing lights on the dash! Don't be too hard on Alfa's as nowadays manufactures more and more are using shared components and third party parts, it just isn't cost effective for them to say design a switch when bosch, valeo etc already have something that will do the job.
 
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