Audi Q5 3.0 TDI Review – Is the V6 Diesel Worth It?

Audi Q5 3.0 TDI review – if you're looking for a compact SUV with a powerful diesel engine, chances are you've already had your eye on this one. And I can see why. The six-cylinder V6 has fantastic pulling power, runs quietly and is brilliant for long journeys and towing. The Audi Q5 8R was built from 2008 to 2017, with several versions of the 3.0 TDI available. But here's the catch! Those six cylinders bring plenty of driving pleasure, but they also come with costs. I want to show you where the weak spots are and what to check before you spend your hard-earned money on one.

Who is the Audi Q5 3.0 TDI a good choice for?

If you regularly drive on the motorway, enjoy trips to the mountains or tow a trailer, I think you'll love the Q5 3.0 TDI. The engine has more than enough pulling power and never feels like it's struggling, even with a fully loaded car. And that V6 runs so smoothly and quietly that you'll really appreciate it on longer journeys. You can cover serious distances without getting tired or feeling as though the engine is working hard.

But if most of your driving is around town, I'd think twice. It's not that the Q5 is unsuitable for city driving. It's just that maintaining this V6 costs money. You've got six cylinders, a complex automatic gearbox and quattro four-wheel drive. It's a fantastic combination when you use the car for what it was built to do. But if you're only making short trips around town, that driving pleasure could end up costing you quite a bit.

Which engines and gearboxes does the Audi Q5 3.0 TDI have?

With the Audi Q5 8R, we're talking about a 3.0 TDI V6 available in several versions. The power output varies, but the character stays the same – a strong diesel engine, an automatic gearbox and four-wheel drive. Here are the main versions so you know what you're looking at.

• 3.0 TDI V6 – initially with 240 hp, followed later by 245 and 258 hp versions.
• Gearbox – 7-speed S tronic, code 0B5, paired with quattro four-wheel drive.

The S tronic is a dual-clutch automatic gearbox. It changes gear quickly and feels lovely to drive, but there's a lot going on inside, and repairs aren't cheap. So when you're choosing a car, don't focus entirely on the engine. The gearbox matters just as much. Trust me on this one.

What are the common Audi Q5 3.0 TDI problems?

Engine timing chains

One of the biggest headaches with the 3.0 TDI is the timing chains, their tensioners and guides. They're located at the back of the engine, and that's exactly what makes replacing them such a big job. To change them, we have to remove the engine. Yes, the entire engine. So if you hear someone say the chains "rattle when it's cold", don't let anyone reassure you that diesels just sound like that. I've explained exactly why the engine has to come out in 3.0 TDI: why the engine has to come out to replace the timing chains.

Swirl flaps, EGR valve and oil cooler

Other familiar weak spots are the swirl flaps, EGR valve and oil cooler. The swirl flaps control how air flows into the engine, while the EGR valve sends some of the exhaust gases back into it. Over time, carbon deposits build up. Then the engine management light comes on and the car "has no power", as owners often describe it. Oil can also start leaking around the oil cooler. I'm not saying every Q5 will develop all these problems. But these are areas we always check.

S tronic 0B5 automatic gearbox

After the timing chains, the next big repair bill could come from the S tronic. Particularly the mechatronic unit – the brain that controls the gear changes – and the clutches. If the gearbox kicks, jerks or changes gear strangely, we need to find out why with proper diagnostics. Not every jerk means you need a new mechatronic unit. But ignoring it and hoping it'll sort itself out isn't a good idea either. I've explained more in S tronic 0B5: mechatronic unit, clutch and two oils.

What should you check before buying an Audi Q5 3.0 TDI?

With this car, I wouldn't trust a shiny exterior and a pleasant little test drive alone. I want to hear the engine start from cold, see what the diagnostics tell us and feel how the gearbox behaves. Here's what we always check.

1. Cold start – we listen for timing chain rattle and check the engine timing with a diagnostic tester.
2. Swirl flaps, EGR and DPF – we check how they're working and whether any fault codes have been stored.
3. S tronic – we check the adaptations, whether both oils have been changed and how the gearbox behaves on a test drive.
4. Leaks – we carefully inspect the engine and the entire car, from above and underneath.

A proper inspection like this could save you a lot of money after buying the car. Because a Q5 can look almost brand new while hiding a problem you'd never notice on a quick drive around the block. That's why I always recommend a full pre-purchase inspectionbefore you hand over your money.

How should you look after your Audi Q5 3.0 TDI?

If you want to enjoy this car for years without unnecessary headaches, don't put off servicing. Our service intervals are based on real driving conditions in Bulgaria, not on squeezing every last kilometre out of the oil. And please, don't forget about the gearbox.

• Engine oil and oil filter – every 10,000 km or once a year, whichever comes first, regardless of the oil used or what the LongLife service interval says.
• S tronic 0B5 – we change both oils every 60,000 km, using genuine oil only, and always carry out a gearbox adaptation afterwards.
• Brake fluid – every 2 years.
• Coolant – every third heating season.
• Workshop inspection – every 6 months.

If you'd like the full details, have a look at our Audi Q5 8R 3.0 TDI service schedule. The important thing is to look after your car on time, rather than waiting until something breaks.

Is the Audi Q5 3.0 TDI worth buying?

For me, the Audi Q5 3.0 TDI is a fantastic car for long journeys, mountain trips and towing. That six-cylinder engine gives you the lovely pulling power and effortless feeling that make people fall in love with a V6. But I wouldn't buy one without a clear service history and a thorough inspection of the timing chains and gearbox. If everything checks out and you're prepared to maintain it properly, the Q5 3.0 TDI is definitely worth it.

A tip from Kris Mladenov: When you're buying a V6 TDI, set some money aside for the timing chains right from the start. Don't assume that just because they're quiet today, you'll never need to replace them. And if you don't need that money any time soon – brilliant! You've got yourself a nice holiday fund.

I hope you've found this article helpful! If you have, share it with a friend who owns an Audi Q5 or is thinking of buying one. I've always believed that when I know something useful, it's worth sharing it with more people. That way, we can all make better decisions about our cars.

The solution in our shop

Genuine LongLife III FE 0W30 5L engine oil

LongLife III is an engine oil. Just remember to change it on time and always replace the oil filter at the same time.

View in our shop

Genuine automatic gearbox service kit for Audi S tronic gearboxes

This kit is for servicing the S tronic gearbox. We use genuine oil when changing it and always carry out a gearbox adaptation afterwards.

View in our shop

S tronic mechatronic unit A4, A5, A6, A7, Q5 0B5

The S tronic 0B5 mechatronic unit is the brain that controls the gear changes. We replace it when diagnostics confirm that there's no avoiding the repair.

View in our shop

Read more

• Pre-purchase inspection
• Major engine repairs
• Audi Q5 8R 3.0 TDI service schedule
• 3.0 TDI: why does the engine have to come out to replace the timing chains?
• S tronic 0B5 (DL501): mechatronic unit, clutch and two oils

Frequently asked questions

What are the most common problems with the Audi Q5 3.0 TDI?

The most common trouble spots are the timing chains, swirl flaps, EGR valve, oil leaks around the oil cooler and the S tronic 0B5 gearbox. The timing chains and mechatronic unit usually lead to the biggest repair bills.

How long do the timing chains last on the Audi Q5 3.0 TDI?

There's no fixed mileage at which you absolutely have to replace them. What matters is listening for chain rattle on a cold start and checking the engine timing with diagnostics.

Should I buy an Audi Q5 3.0 TDI or 2.0 TDI?

If you want plenty of pulling power, spend a lot of time on the motorway or tow a trailer, I'd go for the 3.0 TDI. If you mainly drive around town and want lower maintenance costs, I'd consider the 2.0 TDI.

How often should you change the oil in the S tronic 0B5?

At Das Auto Service, we service the S tronic every 60,000 km, using genuine oil only. We change both oils and always carry out a gearbox adaptation afterwards.