quattro Rick
RMS Regular
- Messages
- 5,217
- Drives
- quattro / M796
Right so I've a couple of issues that have been popping up intermittently, first of the engine cuts out when coming up to a junction, there's no real indication unless you're watching the rpm needle and see it fall below 700...
Initially I thought this was the vacuum boot from the airbox to the ASC throttle body, but having deleted the ASC completely and used a brand new Z4 boot and hose, it's still happening. I've still not got around to replacing the vanos seal and anti rattle bearing, this is what I'm thinking it might be, but I'm also wondering should I be looking into possibly more vacuum leaks hidden elsewhere?
Then there's the battery which if the car hadn't been used for say 4-5 days would need a jump, I've replaced the battery as it was knackered and didn't hold a charge, was left on a charger for a day or two and when re fitted still needed a jump, no issue since the new battery with regards to starting
However when I hooked it up the hazards were going mental with the car locked and unlocked with the hazard switch off, it would stop for a minute then as soon as I started driving again would kick in again
I fished about under the gear gaiter and found what I think might be the fault, a previous owner installed one of those illuminated gear shifts, which I think was hooked into the hazard cable for power to illuminate, when I pressed the hazard button the doors would lock, which I found strange as there is no button to lock the doors inside, I disconnected a cable which stopped the flashing, and all seems ok now, but I'm curious if this may have been what triggered the battery drain?
Or else I believe it may be from the heater unit, as when the car is turned off I can still hear the fan under the unit whirring away, I've since disconnected both the head unit and the heater unit to see if he car will sit for a few days and start ok.
The hedgehog has been replaced so I doubt it's that, but who knows maybe I got a dud
Thanks for any insight, I'm sure there's a wealth of knowledge on these as everyone and their granny seem to have owned one at some stage
Said heater unit fan
Initially I thought this was the vacuum boot from the airbox to the ASC throttle body, but having deleted the ASC completely and used a brand new Z4 boot and hose, it's still happening. I've still not got around to replacing the vanos seal and anti rattle bearing, this is what I'm thinking it might be, but I'm also wondering should I be looking into possibly more vacuum leaks hidden elsewhere?
Then there's the battery which if the car hadn't been used for say 4-5 days would need a jump, I've replaced the battery as it was knackered and didn't hold a charge, was left on a charger for a day or two and when re fitted still needed a jump, no issue since the new battery with regards to starting
However when I hooked it up the hazards were going mental with the car locked and unlocked with the hazard switch off, it would stop for a minute then as soon as I started driving again would kick in again
I fished about under the gear gaiter and found what I think might be the fault, a previous owner installed one of those illuminated gear shifts, which I think was hooked into the hazard cable for power to illuminate, when I pressed the hazard button the doors would lock, which I found strange as there is no button to lock the doors inside, I disconnected a cable which stopped the flashing, and all seems ok now, but I'm curious if this may have been what triggered the battery drain?
Or else I believe it may be from the heater unit, as when the car is turned off I can still hear the fan under the unit whirring away, I've since disconnected both the head unit and the heater unit to see if he car will sit for a few days and start ok.
The hedgehog has been replaced so I doubt it's that, but who knows maybe I got a dud
Thanks for any insight, I'm sure there's a wealth of knowledge on these as everyone and their granny seem to have owned one at some stage
Said heater unit fan