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1.8 TFSI (CABB/CDHB, EA888)

2008–2015 · petrol · 1798cc · 160hp

Engine codes: CABB, CDHB

History-Dependent

Reliability, common problems and owner reviews for the Audi A4 B8 1.8 TFSI (CABB/CDHB, EA888). Check this before you buy used.

The 1.8 TFSI — willing and economical, but the EA888 timing-chain tensioner can fail prematurely (cold-start rattle → chain slip → valve damage) and earlier units share the family oil-consumption trait. Avoid pairing with the Multitronic CVT (separate weak point). Good with a revised tensioner and low oil use.

Known Issues

Timing chain tensioner failurecritical

Tensioner fails, chain loses tension and can slip → rattle, rough idle, misfires, possible valve damage.

Fix / Workaround: Fit revised tensioner/chain; act on cold-start rattle immediately.

Repair cost: €600–€1500

Typically appears after: 100,000 km

Oil consumption (earlier units)recurring

EA888 oil-control-ring consumption on earlier engines.

Fix / Workaround: Check consumption; keep oil topped; revised pistons if severe.

Repair cost: €0–€2500

Typically appears after: 100,000 km

Water pump failurerecurring

Plastic water pump leaks.

Fix / Workaround: Replace with updated part.

Repair cost: €150–€450

Mileage Thresholds

After 100,000 km: Chain tensioner + oil attention.

Pre-Purchase Checklist

  • ☐Cold-start rattle check (chain)
  • ☐Oil consumption check
  • ☐Avoid the Multitronic CVT
  • ☐Water pump history

Frequently asked questions

Is the Audi A4 B8 1.8 TFSI (CABB/CDHB, EA888) reliable?

History-Dependent — The 1.8 TFSI — willing and economical, but the EA888 timing-chain tensioner can fail prematurely (cold-start rattle → chain slip → valve damage) and earlier units share the family oil-consumption trait. Avoid pairing with the Multitronic CVT (separate weak point). Good with a revised tensioner and low oil use.

What are the common problems and reviews for the Audi A4 B8 1.8 TFSI (CABB/CDHB, EA888)?

The most commonly reported problems: Timing chain tensioner failure, Oil consumption (earlier units), Water pump failure.

Is a used Audi A4 B8 1.8 TFSI (CABB/CDHB, EA888) worth buying?

The engine itself is OK; condition is everything. Unknown or patchy history = walk away.