I managed to get an aftermarket set by Depo for my saloon on eBay. Have you tried there? Depo lights are popular as they are also sold abroad, but they have a selector switch inside to swap between LHD and RHD.
That's the point, 507 is 'better' in the sense it's long life oil, but tbh the whole long life oil is questionable. You wouldn't keep washing dishes in used dirty water no matter how good the dish soap would you? The 507 long life oil is meant for 10-20k mile changes which is far to long. Focus...
That's the long life spec isn't it?
As long as you're using one of the two PD spec oils 505/507 (I think), you'll be fine regardless of brand. What's actually far more important is how regularly you change the oil, I've always changed at 5k miles.
Sounds about right the PD series were always a little laggy Vs the new common rail models, but that's what made them fun. If you want to be certain get vcds and log it on engine -> measuring block 11. This will show you requested boost Vs delivered by the turbo.
If it's like the TDI model, the coolant sensor itself has two circuits to send temperature information so you can have a weird situation where the sensor works on half the circuit only
Fit a new one, it's a cheap part and not very difficult to fit in most cases, just have more g12/g13 coolant...
Isn't there a low powered 1.9 TDI model in the b7 range? I'd have thought the mount would be identical.
Mine has the Passat mounts, changed before I bought the car. I cannot say I notice any issues with vibration, but yes it records a code in the logs
Tbh you're injectors are at their limit at 180, after that you're increasing duration which means higher egt's and smoke. I'd stick where you are.
The only turbo's I'd consider changing to are a more modern GTB or gtd turbo and purely for the faster spool up and reliability
In my experience here there is little activity in the b6 section, it would seem the knowledgeable people have moved on now.
The good news is nearly every question has been asked and answered already, you just have to search back through the archives to find the info required.
Engine mounts? The A4 is unique in that they put a liquid in the mounts to reduce vibrations, eventually they age and leak and performance reduces. Worth checking them first.
Most people just put the far cheaper Passat mounts in to replace them. The engine will log a code but they work just fine.
Thanks for the advice, that makes a lot of sense. I've discovered there is an inline filter that can also get blocked over time which might be worth changing once the system is drained. I'll see who my aircon specialists are in the area.