Audi A8 D4 3.0 TDI Service Schedule

The Audi A8 D4 3.0 TDI is a fantastic luxury saloon. You get the comfort of a much more expensive car, but these days you can pick one up for the price of a regular used car. There's a catch, though! All that comfort needs looking after. The air suspension, the V6 diesel with its timing chains and the eight-speed gearbox aren't things you can just forget about. That's why I want to walk you through the Audi A8 D4 3.0 TDI service schedule.

What should you know about the engine?

The 3.0 TDI has timing chains at the gearbox end of the engine. And here's the catch – when those chains wear out and need replacing, the engine has to come out. That's why, whenever we carry out a major service, we use diagnostics to check how much the chains have stretched. I'm telling you this because it's far better to catch the wear early than wait until something goes wrong.

How often should you change the engine oil?

My advice is simple – change the engine oil and oil filter every 10,000 km or once a year, whichever comes first, regardless of the oil used. And always use oil that meets the correct specification for your engine.

What should you know about the Tiptronic gearbox?

The A8 D4 has an eight-speed Tiptronic gearbox. It's a heavy car, the engine produces plenty of torque, and that gearbox works hard. So yes, its oil needs changing. And there's something else that's important – after an oil change, we always carry out a gearbox adaptation. Simply filling it with fresh oil and calling the job done isn't enough.

What problems can the air suspension develop?

Air suspension comes as standard on the A8. As the years go by, the air springs can crack and the compressor starts to wear out. How can you tell? You might find the car sitting lower on one side in the morning, hear the compressor running for far too long, or see a suspension warning light on the dashboard. Don't ignore these signs. Your car is trying to tell you something isn't right.

V6 TDI timing chains at Das Auto Service

What else do we check on the A8 D4?

The thermostat and the entire cooling system.
The EGR valve and the DPF.
The front suspension arms.
The battery – with so much electronics on board, even a weak battery can trigger a whole load of fault codes.

What else is included in the Audi A8 D4 3.0 TDI service schedule?

The fuel filter, air filter and cabin filters.
The crankcase ventilation filter – every 80,000 km.
Brake fluid – we change it every two years.
Coolant – we change it every third heating season.

If your air suspension has dropped on one side, don't just carry on driving like that. The compressor keeps trying to make up for the lost air, runs constantly, overheats and eventually leaves you with an even bigger repair bill. And my friend, that bill comes out of your pocket, not the garage's.

A tip from Kris Mladenov: If your A8 is sitting lower in the morning than it was when you parked it the night before, don't wait. Catching and fixing an air leak early is much cheaper than leaving it until the compressor needs replacing.

If you drive an Audi A8 D4, bring it to us at Das Auto Service for a service. We'll check the timing chains, the gearbox and the air suspension. We'll explain what's in good shape, what needs attention and what you should plan for next. I want you to understand your car and know what's coming, without any nasty surprises.