Car Model Guide/ Audi/ A3/ 8P7/ 1.8 TFSI

1.8 TFSI CDAA

The 1.8 TFSI, EA888 gen-1/gen-2. The pick of the A3 petrols on paper, until you meet the two family faults: the chain tensioner that can let the chain skip, and the piston-ring oil consumption on higher-mileage cars.

Overview

The 1.8 TFSI is the CDAA petrol version of the Audi A3 convertible (8P7), sold 2008–2013 with 160 PS and manual or automatic. Demands diligence at level 3. The EA888 chain tensioner can let the chain skip, and higher-mileage cars consume oil through worn rings. 16 failure modes are recorded against its engine, gearbox, chassis and shared components, one of which is a walk-away item without documented proof. Prices on this page are illustrative placeholders rather than a sourced market sample. See the methodology for how the bands are derived.

Audi A3 convertible (8P7) · photo Audi A3 Cabriolet, Baujahr 2008 (2008-10-21) by Spurzem - Lothar Spurzem · CC BY-SA 2.0 de · Wikimedia Commons

Power160 PS

Torque250 Nm

Years2008–2013

Fuelpetrol

DriveFWD

EnginesCDAA

Biggest risks

Ranked by probability × repair cost. 16 recorded in total.

40Fragile

Timing chain tensioner failure€900–€1,800checkablewalk away
Excessive oil consumption (piston rings)€150–€4,000partly checkable
Dry-clutch DSG mechatronic failure€1,200–€2,800checkable

Risk level −22 · Walk-away failures −12 · Likely spend vs price −26 · all issues →

System by system9 systems reviewed · 2 with no recurring fault reported

Engine⚠ attentionTiming chain tensioner failure, €900–€1,800. Walk away without proof.+1 more in this system

Fuel system✓ clearNo recurring fault reported for this system on this engine.

Intake & airwatchCarbon buildup on intake valves, €400–€700.

CoolingwatchCoolant expansion tank cracking, €120–€250.

Emissions✓ clearNo recurring fault reported for this system on this engine.

Transmission⚠ attentionDry-clutch DSG mechatronic failure, €1,200–€2,800.+1 more in this system

ElectricswatchFootwell module (FRM) failure, €150–€700.+3 more in this system

Suspension & brakeswatchFront control arm bushing wear, €300–€700.+3 more in this system

Body & interiorwatchCorrosion at the rear subframe and arch seams, €300–€2,000.+1 more in this system

Known issues, ranked by expected cost

Faults recorded against this engine, its components and its chassis, ranked by likelihood × repair cost. Costs are indicative ranges with a stated labour basis.

Timing chain tensioner failureea888-chain-tensioner€900–€1,800

Rattle for a second or two on cold start, chain noise from the back of the engine, timing correlation faults, or no start after the car has stood. The early hydraulic tensioner can lose tension and allow the chain to jump. The chain is at the gearbox end of the engine, so access is poor and a failure usually bends valves.

Check: Insist on a stone-cold start and stand at the bulkhead end of the engine. Any rattle beyond the first half-second is this until proven otherwise. Ask for a tensioner receipt with the part number. The revised part is the fix, not the mileage.

Later parts: Revised tensioner part number; fitted from later production

EnginecommonDetectable at viewingwalk away without proofevidence: documented60–180k km

Excessive oil consumption (piston rings)CDAA 1.8 TFSI€150–€4,000

Regular oil top-ups between services, low-oil warnings, oil-fouled plugs and occasional light blue smoke. Low-tension oil-control rings with small drain-back holes coke up and let oil past the pistons, where it burns. A tired crankcase breather can add to it.

Check: Ask the owner's top-up interval, inspect the oil level and the spark-plug colour, and watch for smoke on hard acceleration and over-run.

Later parts: Revised pistons and rings on later EA888 production

EnginecommonPartly detectableevidence: documented60–150k km

Dry-clutch DSG mechatronic failureDQ200-7DSG€1,200–€2,800

Juddering at low speed, harsh or refused engagement, warning lights, or a car that won't select a gear. The seven-speed dry-clutch unit's mechatronic and clutch packs wear, and the clutches are far less tolerant of stop-start use than the wet-clutch six-speed.

Check: Drive from cold in traffic. Judder pulling away, hesitation between first and second, or a jolt on the overrun are all this. Ask for the service history. These need fluid and clutch adaptation work.

TransmissioncommonDetectable at viewingevidence: documented80–180k km

Carbon buildup on intake valvesdirect injection€400–€700

Rough cold idle, slow throttle response, misfires, gradual loss of low-end response. Direct injection puts no fuel over the intake valves, so crankcase vapour deposits bake on undisturbed.

Check: Not visible without a borescope. Treat it as a service item that's due unless there's a receipt. It's not a fault, it's an unbudgeted maintenance cost.

Turbo & intakeuniversalNot detectable at viewingevidence: documented80–120k km

Front control arm bushing wearE9x chassis€300–€700

Knocking over bad surfaces, vague or wandering steering, uneven front tyre wear, steering shimmy under braking. The front lower arm bushings are a known wear item on this chassis and go well before the ball joints.

Check: Drive over a rough road at low speed with the windows down and listen. Check the inside edges of the front tyres for feathering.

SuspensionuniversalDetectable at viewingevidence: documented80–150k km

Run-flat tyres and kerbed or cracked wheelsE9x chassis€150–€900

Harsh ride, vibration at speed, slow punctures. Stiff-sidewall run-flats transmit impacts straight into the rim, and these alloys crack rather than bend.

Check: Inspect the inner rim edge of every wheel for cracks and hairline splits, not just the face for kerbing. Budget for a set of conventional tyres; most owners switch and the ride improves markedly.

SuspensioncommonDetectable at viewingevidence: documented

Corrosion at the rear subframe and arch seamsE9x chassis€300–€2,000

Bubbling at the rear arch lip, scaling on subframe mounting points and rear suspension components. Age plus road salt. This generation isn't a notorious rotter, but nothing from 2005–2013 is immune in a salted market.

Check: Put it on a lift and look at the rear subframe mounting points and the arch lips from behind. Largely a non-issue on cars from southern Europe, a real one on northern and Baltic cars.

Body & corrosionoccasionalDetectable at viewingevidence: documented

Footwell module (FRM) failureE9x chassis€150–€700

Headlights, indicators, windows, wipers and central locking stop working at once, usually right after a battery change or a jump start. The module's memory corrupts when supply voltage dips. It is the single most common electrical failure on this generation.

Check: Test every window, both mirrors, the wipers, all exterior lights and the central locking before you drive. If any cluster of these is dead, this is why.

ElectricalcommonDetectable at viewingevidence: documented

Ranked by probability × repair cost, not by how loudly a failure is discussed. Inherited from the engine, gearbox, chassis and shared components, each written once. All 16 issues in full →

Mileage and servicing

What the odometer does and doesn't tell you here, plus the service items whose neglect causes the expensive failures above.

Ask the oil top-up interval and scan for chain-correlation faults; both matter more than the mileage.

Service item	Interval	Cost
Engine oil Low oil worsens both the tensioner and ring wear	10,000–15,000 km	€80–130
Timing chain / tensioner A skipped chain is catastrophic	listen at cold start	free to inspect
Oil-consumption check Worn rings are a short-block repair	on purchase	free to assess

What to pay

What this engine sells for, against the median of every engine in the chassis. All figures are illustrative placeholders. See the basis chips.

median €5.5k

€3.5k€4.5k€8.5k

Cheapfind the reasonGood buyif it checks outFairnormal moneyOverpricedneeds justifying

Asking price (€)Mileage (km)

Enter an asking price to get a verdict against this variant's band: cheap, fair, good buy or overpriced.

United States vs Europe

1 EUR = 1.08 USD · 2026-07

🇪🇺 Europe · EUR€4,500band €3,450–€8,500

🇺🇸 United StatesNot sold1.8 TFSI CDAA was never a US-market car

What that meansNo US band exists to compare. Any car you find there's a private import, parts and specialist knowledge are thinner, and the price says more about import cost than about the market.

US figures are the EU band converted at a stated rate. No US market differential is modelled: we hold no sourced US asking prices, and inventing one would be worse than saying so. What the comparison does show for real is availability. Most of this range was never sold in the US.

ModelAudi A3 1.8 TFSI
Chassis8P7
EngineCDAA
Years2008–2013
MarketCentral EU
Windowrolling 12 months to 2026-07

Good buy at or under the marker · Median asking price · bar spans the 10th to 90th percentile · dashed line is the 8p7 median, all 5 engines

Good buy isn't the same as cheapest. Any car without documentation for timing chain tensioner failure should be priced as if the repair is still owed. Full breakdown by facelift phase →

Buyer notes

Our judgement, kept separate from the records it's built on.

Our read, not a record

The 1.8 TFSI is the best-judged petrol in the range: enough torque to feel effortless, smooth, and economical for the performance. And it also brings the EA888's two signature faults. The chain tensioner that can let the timing skip, and the piston-ring oil consumption that has cars topping up between services. Neither is a reason to avoid the engine; both are reasons to buy a documented one that has had the tensioner done and doesn't drink oil. Get those right and it's the A3 petrol to have.

Everything above this line comes from the issue and specification records. This paragraph is our judgement on top of them. See how we reach it.

Full specification

Manufacturer figures for this engine and body, as recorded in the variant and engine data.

Engine code	CDAA 1.8 TFSI
Configuration	I4, turbocharged · 1798 cc
Fuel / injection	petrol · direct
Model years	2008–2013
Facelift phase	Pre-facelift only, to -1
Power / torque	160 PS · 250 Nm
Transmissions	6-speed manual · 7-speed dry-clutch DSG/S tronic
Gearbox families	DQ200-7DSG
Drivetrain	FWD
Economy (real-world)	6.5–8 l/100 km mixed
Markets	EU

1.8 TFSI CDAA

Overview

Known issues, ranked by expected cost

Pre-purchase inspection

1Cold startYou get one. If the engine is warm when you arrive, come back another day.

2Static checksEngine off, ideally on a lift.

3On the driveInclude low-speed manoeuvring, not just an open road.

4PaperworkOn these cars the folder is most of the value.