1.8T (EA113)
Audi · 1.8T 20V Turbo I4
1995–2005
"B5 A4/Passat B5. AEB/APU/AWM codes. Oil sludge issue if intervals skipped. Turbo failure at 150k+ km. Coil pack failures. Hugely tuneable. Solid with care."
Mileage Risk Timeline
When problems typically appear — enter your mileage to see your risk zone
Known Issues 2
Oil sludge formation
▸Low oil pressure warning, sludge in valve cover
Extended oil change intervals caused sludge. Use 5W-40 synthetic, change every 8-10k km.
Λάσπη λαδιού — αλλαγή λαδιού κάθε 8-10k km. Μην αμελείτε.
Turbo failure
▸Boost loss, smoke, whining
K03/K04 turbo wears at high mileage.
Turbo — €500-1,500. Αναμονή στα 150k+ km.
Models with 1.8T (EA113) 22
Related Guides
Other Audi Engines
Tuning Potential
300hp+ Stage 2 easy
Frequently Asked Questions
Is the Audi 1.8T (EA113) reliable?
The Audi 1.8T (EA113) scores 72/100 with a verdict of ACCEPTABLE. It has 2 documented issues with total repair costs between €1,000 and €3,500.
What are the common problems with the 1.8T (EA113)?
The most common issues are:
- Oil sludge formation — high, repair cost €500–€2,000, 60,000 km–120,000 km
- Turbo failure — high, repair cost €500–€1,500, 120,000 km–200,000 km
What cars use the Audi 1.8T (EA113)?
How much does it cost to repair the 1.8T (EA113)?
Total potential repair costs for all 2 known issues range from €1,000 to €3,500. The most expensive issue is typically .
What years was the 1.8T (EA113) produced?
The Audi 1.8T (EA113) was produced from 1995 to 2005. It is a 1781cc I4 petrol turbo engine.
Scores are calculated from documented issues, repair costs, and failure patterns across thousands of owner reports and technical sources. Learn about our methodology. Always inspect before you buy.