Customise
Make your Audi feel more yours.
Auto headlights activation threshold, daytime running lights and more.
- Show digital speed in dashboard
- Auto start/stop: remember last state
- Daytime running lights (DRL)
Turn your phone into an Audi OBD2 Scanner & Diagnostic App
Plug an OBD2 scanner into your Audi and Carista reads what the dealer sees — every warning light, live engine, transmission and turbo data, hidden settings like needle sweep and the start-up logo — across 37 Audi model lines, from the A1 to the R8.
About
Carista is a Bluetooth OBD2 scanner and phone app that gives Audi owners full-system diagnostics, live engine, transmission and turbo data, service tools like service indicator reset, battery registration and throttle body adaptation, and customizations like gauge needle sweep and disabling auto start/stop — across 37 Audi model lines — without a trip to the dealership or a PC-based tool like VCDS
What can you do with Carista & your Audi
Carista reads and clears Audi fault codes, streams the same live data a technician sees, including turbo and DPF, and handles the Audi diagnostic checks and settings a dealer visit would otherwise be needed for.
Diagnose
Know what the warning light is saying.
Read and clear supported Audi fault codes, then make sense of the data before booking a garage.
- Read & clear engine and chassis fault codes
- Covers common Audi codes like P0300, P0420, P0171, P0101, and more.
- Clears the check-engine light once the underlying code is resolved
Service
Take care of the jobs Audi lets you do.
Run supported tools from your phone and arrive at the garage knowing more than you did before.
- Audi battery registration (BMS reset) after a battery replacement
- DPF regeneration: force a diesel particulate filter regen without a dealer visit
- Service indicator reset & used car checks
Feature availability varies by vehicle model, year and equipment.
Top 5 Audi Features
COMPATIBILITY
37+ Audi models.
Find yours.
Carista supports a wide range of Audi models and generations. Select your model to see exactly which features are available.
S1
S3
A5
Q3
Q5
A3
A4
Q7
12 of the most common Audi codes
These are standard SAE-defined diagnostic trouble codes that turn up most often across Carista's Audi lineup – the same codes a dealer's scan tool would show.
P0300
The engine is misfiring on several cylinders at random, often from worn spark plugs, bad ignition coils or a vacuum leak.
P0420
The catalytic converter isn’t cleaning the exhaust as well as it should, usually because it’s worn out
P0171
The engine is getting too much air for the fuel, usually because of a vacuum leak or a dirty air intake sensor.
P0299
The turbo isn’t producing enough boost, typically from a boost leak or a sticking wastegate.
P2015
The sensor on the intake flaps reports an out-of-range position, a well-known problem on VW Group diesels.
P0016
The crankshaft and camshaft are out of sync, often a sign of a stretched timing chain.
P0011
The intake camshaft timing is more advanced than the engine computer asked for, usually from low or dirty oil or a faulty timing control valve.
P0171
The engine is getting too much air for the fuel, usually because of a vacuum leak or a dirty air intake sensor.
P0234
The turbo is producing too much boost, often from a stuck wastegate or a faulty boost control valve.
P0087
Fuel pressure is too low, often from a weak fuel pump or a clogged fuel filter.
P17D8
Unverified. This is a brand-specific code (any code starting P1), so its meaning depends on the make, and I won’t guess.
P0299
The turbo isn’t producing enough boost, typically from a boost leak or a sticking wastegate.
Why many
drivers choose Carista
Free App Diagnostics
- Basic diagnostics, no subscription
- Connect and pick a function
- No complicated licensing structure
Carista
Pro Access
- Advanced diagnostics and live data
- Customizations and service procedures
- Monthly, annual or two-year plans
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FAQ
What is the best OBD2 scanner for an Audi?
For most Audi owners, a Bluetooth OBD2 scanner paired with an app like Carista beats a standalone code reader: it reads and clears fault codes, streams live engine, transmission and turbo data, runs service tools like service indicator reset, battery registration and throttle body adaptation, and adds customization options a basic reader can’t touch — all through the phone you already have.
Does Carista work with all Audi models?
Carista supports 37 Audi model lines, including the A1 through A8, Q2 through Q8, S and RS models, TT, R8 and e-tron models. Exact feature coverage varies by generation and region.
Can Carista do an Audi battery registration or battery coding?
Battery registration is one of Carista’s service tools for Audi. Many Audi owners search for it as battery coding or a battery adaptation: after you fit a new battery, registering it lets the car’s power management adjust charging for the new battery, a step garages and dealers commonly charge extra for.
Can Carista replace VCDS or ODIS?
VCDS is a deep, long-established diagnostic tool for Volkswagen Group cars and ODIS is the dealer-level software, and both reach further into module-level coding than Carista, but they need a Windows PC and a dedicated interface. Carista covers the diagnostics, live data, service tools and customization most owners actually use, from a phone, without complicated setup.
How much does an Audi dealership charge for a diagnostic, and how much does Carista cost?
Audi dealerships typically charge a huge diagnostic fee before any repair is quoted, and services like battery registration or a service reset are often billed on top. Carista’s scanner works on any Audi you own, with a free plan for basic diagnostics and PRO for full coding and service tools.