Known Patterns
What actually goes wrong on an Audi
These are the faults we see repeatedly rather than a general list of car problems. If you recognize one of them, it is normal for the platform and it has a known fix.
Rough cold start and a stumble under load
Direct injection means no fuel washes over the intake valves, so carbon builds on them and never leaves. It comes on slowly over about 60,000 to 90,000 miles. Walnut blasting takes it back to clean metal rather than pouring a chemical through and hoping.
A rattle for a second or two on startup
On the earlier 2.0T this is the timing chain tensioner, and it is the one item on this list you should not wait on. The tensioner is cheap compared with what happens if the chain jumps.
Oil level dropping between services
Some of these engines genuinely use oil, and some are leaking it at the valve cover or the cam adjuster seals. The difference matters, so we look before we tell you to top it up and carry on.
A whine or shudder from the driveline
Quattro uses a Haldex clutch pack at the rear that needs its fluid and filter serviced. It is not lifetime fill despite what the interval sometimes implies, and neglected units get expensive.
Jerky low speed shifts on an S tronic
The dual clutch box has its own fluid and clutch adaptation service. Done on time it is routine. Skipped for long enough it becomes a mechatronic unit, which is a completely different invoice.
Warning lights that come and go together
Clusters of unrelated lights usually mean a communication fault or a tired battery rather than five simultaneous failures. A new battery also has to be registered to the car, or the charging system will cook it.
Doing It Properly
What servicing an Audi actually requires
Most of the work on a modern Audi is only accessible with the right information. Adaptation values, basic settings, service position, throttle body alignment and battery registration are not optional extras, they are how the car expects to be worked on. A shop without manufacturer level data can replace a part and still leave the car running worse than it arrived.
So we hold that capability rather than referring Audi work out. On parts, plenty of Audi components come from suppliers whose own boxed version is the same part at a materially lower price, and some genuinely are not. We will tell you which case you are in instead of defaulting to whichever is more profitable.
The thing that makes an Audi expensive is not the brand, it is deferral. Carbon, tensioners and Haldex fluid are all cheap on schedule and all costly once ignored. Bring it in on a normal interval and it behaves like any other car.
Worth knowing
Direct injection means the valves need cleaning
On a direct injected engine the fuel goes straight into the cylinder, so nothing ever washes across the back of the intake valves. Oil vapor from the crankcase ventilation system bakes onto them instead, and over the years it restricts airflow enough to cost power, economy and idle quality. It is not a fault, it is a maintenance item, and the fix is walnut media blasting the ports rather than a chemical poured into the tank.
Questions
Audi questions
Do I have to use the dealer to keep my Audi warranty?
How often does an Audi need carbon cleaning?
Is the rattle on startup serious?
Do you use genuine Audi parts?
Can you service quattro and S tronic?
My Audi needs a battery. Is that a normal job?
Models
Audi models we work on
Everyday cars and the quick ones alike, front wheel drive and quattro.
- A3
- A4
- A5
- A6
- A7
- A8
- Q3
- Q5
- Q7
- Q8
- S4
- S5
- SQ5
- TT
- e-tron
- and the rest of the range
What We Do
Everything your Audi needs, in one shop
Also European
Other European makes we service
Or see every make we service, grouped by where it was built.
Book It
Bring the Audi in before the rattle gets worse
29444 Woodward Ave, Royal Oak. Free written estimate, factory level diagnostics, and an honest view of what your car needs now against what can wait.