Aluminium
A2OC Donor
My latest A2 TDI 75 Sport (with 60,000 fully historied miles) has developed a noise which I'd presumed was something in the engine bay, I thought perhaps a tensioner/idler had given up the ghost so….
Last week Tony (HotStuff) kindly offered to check over my A2 at his workshop, unfortunately (typically) the noise wasn't at all audible on the test drive.
Next-up was an inspection of the engine bay which showed everything to be in fine shape with nothing loose.
Up on the ramp Tony had an inkling that a loose exhaust rattle might be the issue but that theory was blown out as everything under the car was tight as drum.
From my description of the symptoms and the noise Tony said it had to be a gearbox fault . . .
Today I visited Stealth as they had a spare half-hour to check the A2, I'd explained the situation and Vince thought it had to be a bearing of some sort…
True to form the noise wasn't very vocal on the test drive so it went on the ramp for a visual check which came to nothing.
After a bit of head-scratching Vince climbed in the car and had his technician raise the ramp, as Vince went through the gears we could hear a loud gnashing noise which increased with each up-change.
Vince thinks a pinion bearing may be at fault, I can't quite remember exactly what he said but it'll need a strip-down to see precisely what's wrong.
So I'm looking at having the gearbox reconditioned unless I can find a mint original TDI 75 one (I don't know what the code is).
Vince did mention that there were other options such as the JDD gearbox but I'm loathe to modify the gearbox ratios for fear of reliability issues in years to come, as standard it's great on country lanes and around town, admittedly I do find fifth gear a bit short on the motorway.
Last week Tony (HotStuff) kindly offered to check over my A2 at his workshop, unfortunately (typically) the noise wasn't at all audible on the test drive.
Next-up was an inspection of the engine bay which showed everything to be in fine shape with nothing loose.
Up on the ramp Tony had an inkling that a loose exhaust rattle might be the issue but that theory was blown out as everything under the car was tight as drum.
From my description of the symptoms and the noise Tony said it had to be a gearbox fault . . .
Today I visited Stealth as they had a spare half-hour to check the A2, I'd explained the situation and Vince thought it had to be a bearing of some sort…
True to form the noise wasn't very vocal on the test drive so it went on the ramp for a visual check which came to nothing.
After a bit of head-scratching Vince climbed in the car and had his technician raise the ramp, as Vince went through the gears we could hear a loud gnashing noise which increased with each up-change.
Vince thinks a pinion bearing may be at fault, I can't quite remember exactly what he said but it'll need a strip-down to see precisely what's wrong.
So I'm looking at having the gearbox reconditioned unless I can find a mint original TDI 75 one (I don't know what the code is).
Vince did mention that there were other options such as the JDD gearbox but I'm loathe to modify the gearbox ratios for fear of reliability issues in years to come, as standard it's great on country lanes and around town, admittedly I do find fifth gear a bit short on the motorway.