Engine code
Vehicles using AAT engine list:
Which cars use the AAT engine and what oil to use. Common AAT engine faults, symptoms, diagnosis, prevention and repair.
Ask AI about any Engine code
Questions strictly about engine codes (brand/model/engine type/production years).
| Castrol EDGE 5W-40 A3/B4 | |
|---|---|
| ACEA A3/B4 | β |
| API SP | β |
| BMW Longlife-01 | β |
| MB 229.3 / 229.5 / 226.5 | β |
| Porsche A40 | β |
| Renault RN0700 / RN0710 | β |
| VW 502 00 / 505 00 | β |
| Chrysler MS-12991 | β |
| Ravenol VST 5W-40 | |
|---|---|
| ACEA A3/B4 | β |
| API SP | β |
| BMW Longlife-01 | β |
| MB 229.5 / 226.5 | β |
| Porsche A40 | β |
| VW 502.00 / 505.00 | β |
| Renault RN0700/0710 | β |
| Chrysler MS-12991 | β |
| Mobil 1 FS 5W-40 | |
|---|---|
| ACEA A3/B3/B4 | β |
| API SN/SM/CF | β |
| BMW Longlife-01 | β |
| MB 229.3 / 229.5 | β |
| Porsche A40 | β |
| VW 502.00 / 505.00 | β |
| Renault RN0700/0710 | β |
| Chrysler MS-12991 | β |
| Liqui Moly High Tech 5W-40 | |
|---|---|
| ACEA A3/B4 | β |
| API SN/CF | β |
| BMW Longlife-01 | β |
| MB 229.5 | β |
| Porsche A40 | β |
| VW 502.00 / 505.00 | β |
| Renault RN0700/0710 | β |
| Chrysler MS-12991 | β |
Oil specification key
β β Meets the required specification
β β Not explicitly stated (use caution; check your vehicle manual)
β β Does not meet required specification. Use may cause engine issues.
β β Meets the required specification
β β Not explicitly stated (use caution; check your vehicle manual)
β β Does not meet required specification. Use may cause engine issues.
As an Amazon Associate, we may earn from qualifying purchases.
Answer generated by AI.
Oil specifications for AAT engine
SAE 5W-40
ACEA A3/B3
VW 501.01
VW 505.00
Most common problems, symptoms & fixes for the AAT engine.
Engine AAT, a 2.5 TDi from early 90s Audi 100, commonly faces EGR valve clogging, causing rough idling and reduced performance. Diagnose by checking for soot buildup and testing EGR function; cleaning or replacing the valve often resolves issues. Injector wear can cause poor fuel atomization; test injectors for spray pattern and replace if faulty. Turbocharger seals may leak, leading to smoke and power loss; inspect and rebuild or replace turbo if needed. Regular oil changes with quality diesel oil prevent premature wear. Use fuel additives to keep injectors clean. Monitoring boost pressure helps detect early turbo or intake leaks.