How much does an Audi A4 35 TFSI / 1.8 TFSI engine replacement cost-

A full reconditioned or rebuilt Audi A4 35 TFSI / 1.8 TFSI engine typically costs between £3,200 and £5,500 for the supply-only unit, depending on the specific engine code and condition. Used engines start from around £800. Fully rebuilt units with upgraded components and a 12-month warranty sit at the higher end of the scale. Supply and fit labour will add approximately £500-£800 depending on the specialist.

What are the signs of timing chain failure in an Audi A4 1.8 TFSI-

The most common early warning sign is a distinct rattling noise from the engine bay during a cold start, which may fade as the oil warms up. You may also notice the engine management light illuminating. In severe cases, the engine may misfire, lose power, or fail to start entirely. Ignoring these signs can lead to rapid catastrophic internal engine damage.

Is it worth replacing the engine in an Audi A4 35 TFSI / 1.8 TFSI-

Yes, if the vehicle is in good overall condition and valued above £8,000, a reconditioned engine replacement is a financially sound decision that restores reliability. For older 2008-2012 models valued under £5,000, a high-quality used engine swap may offer a better return on investment. Always compare multiple specialist quotes to ensure the replacement cost does not exceed 60% of the vehicle's current market value.

How long does an Audi A4 35 TFSI / 1.8 TFSI engine replacement take-

A straightforward supply and fit of a reconditioned Audi A4 35 TFSI / 1.8 TFSI engine typically takes 1 to 2 days at a specialist workshop. This timeframe includes draining fluids, removing the old unit, and installing the replacement. Necessary ECU adaptations and road testing are completed before handover. Complex cases involving additional damage may extend this timeframe.

What is the difference between the 1.8 TFSI and 35 TFSI engines in the Audi A4-

The "1.8 TFSI" badge (2008-2015) denotes a 1.8-litre EA888 Gen 2 engine producing 120hp or 160hp. The "35 TFSI" badge (2016-present) denotes a 2.0-litre EA888 Gen 3 engine producing 150hp. The 2.0L variant was introduced to improve efficiency, reduce oil consumption, and meet stricter emissions standards while maintaining similar real-world performance. Mechanically, the Gen 3 architecture features a revised timing chain setup and improved thermal management.

Audi 35 TFSI / 1.8 TFSI SPECIALISTS

Audi A4 35 TFSI / 1.8 TFSI Engine Replacement Compare Prices & Get Quotes

Get quotes today from trusted UK Audi A4 35 TFSI / 1.8 TFSI engine specialists. Compare prices on reconditioned, rebuilt and used engines to find the most cost-effective and reliable solution for your vehicle.

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Audi A4 35 TFSI / 1.8 TFSI Engine

from£3,200 to £5,500...

Usedfrom £800
Reconditionedfrom £2,000
Common codesCDHA, CDHB, CYKC

Audi a4 35 TFSI / 1.8 TFSI Used Engine — CDHA

Audi a4Used Engine — CDHA

Audi a4 35 TFSI / 1.8 TFSI Reconditioned Engine — CDHA

Audi a4Reconditioned Engine — CDHA

Audi a4 35 TFSI / 1.8 TFSI Rebuilt Engine — CDHA

Audi a4Rebuilt Engine — CDHA

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How it works

3 Simple Steps to Finding the Right Replacement Engine

Clear information first, then the right engine and specialist for your exact vehicle.

Variant History

Audi A4 35 TFSI / 1.8 TFSI Engine History & Specs at a Glance

When the 1.8 TFSI badge launched in the B8 generation, it offered a highly efficient turbocharged petrol alternative to the diesel-dominated lineup, later evolving into the 35 TFSI badge in the B9 generation with an updated EA888 architecture to meet stricter emissions while maintaining strong performance.

2008
CDHA / CDHB (1.8L TFSI, 120-160hp) introduced in the B8 generation, featuring direct injection and turbocharging.
2012
Revised EA888 Gen 2 updates applied, addressing early timing chain tensioner weaknesses in the 1.8 TFSI lineup.
2016
35 TFSI badge introduced in the B9 generation, utilising the EA888 Gen 3 2.0L architecture (badged as 35 but producing 150hp) for improved thermal efficiency, reduced oil consumption, and enhanced reliability.

Every engine fitted to the Audi A4 35 TFSI / 1.8 TFSI is covered below, with UK rebuilt pricing and known failure points.

Engine Codes & Pricing

Audi A4 35 TFSI / 1.8 TFSI Engine Codes Specifications & Replacement Cost

Find your exact engine code, specs and UK replacement cost guide.

CDHA — 1.8L Petrol (2008-2015)

Power Output: 120hp
Years Fitted: 2008-2015

Can’t find your exact engine code?-> Get quotes for CDHA Audi A4 35 TFSI / 1.8 TFSI engine replacement

-> Get quotes for CDHA Audi A4 35 TFSI / 1.8 TFSI engine replacement

Common failure points and repair options

Timing Chain Tensioner Failure

Affected: Audi A4 1.8 TFSI (CDHA, CDHB, 2008-2012)
Typical failure mileage: 60,000-90,000 miles

Root cause

Early EA888 Gen 2 tensioners lack sufficient holding pressure, allowing the chain to stretch and skip teeth, leading to catastrophic valve damage.

Repair options

Repair tier	Dealer price	Specialist price
Minor/Preventative: Timing chain & tensioner kit replacement	£1,200-£1,800	£800-£1,200
Full Replacement - rebuilt/reconditioned engine	£5,500-£7,500	£3,200-£5,500 [ESTIMATED - using VW/Audi EA888 Gen 3 2.0 TSI as proxy]

Our recommendation

If you hear a cold-start rattle, act immediately. A preventative chain kit replacement is far cheaper than a full engine rebuild. If the engine has already failed, a high-quality used engine may be the most financially viable option for older B8 models.

-> Compare rebuilt CDHA Audi A4 35 TFSI / 1.8 TFSI engine prices

Water Pump & Thermostat Housing Leaks

Affected: Audi A4 35 TFSI / 1.8 TFSI (All EA888 codes, 2008-present)
Typical failure mileage: 60,000-100,000 miles

Root cause

The plastic composite housing of the water pump and thermostat is prone to warping and cracking under repeated thermal cycling, leading to external coolant leaks.

Repair options

Repair tier	Dealer price	Specialist price
Minor/Preventative: Water pump and thermostat assembly replacement	£700-£1,000	£400-£800
Full Replacement - rebuilt/reconditioned engine	£5,500-£7,500	£3,200-£5,500 [ESTIMATED - using VW/Audi EA888 Gen 3 2.0 TSI as proxy]

Our recommendation

Monitor coolant levels closely. Replace the water pump assembly preventatively around 80,000 miles. If the engine has overheated, opt for a reconditioned engine with a warranty to avoid recurring issues.

-> Compare rebuilt CYKC Audi A4 35 TFSI / 1.8 TFSI engine prices

Don't Let Engine Failure Write Off Your Audi A4 35 TFSI / 1.8 TFSI

Whether you are dealing with early timing chain wear or a cooling system leak, replacing your engine with a rebuilt unit from EnginesMarket ensures the core weakness is addressed with upgraded components. You benefit from a minimum 12-month unlimited-mileage warranty, nationwide delivery, and prices that undercut main dealer premiums significantly.

Compare Audi A4 35 TFSI / 1.8 TFSI Engine Replacement Prices Now ->

FAQ

Audi A4 35 TFSI / 1.8 TFSI Engine ReplacementFrequently Asked Questions

Everything Audi A4 35 TFSI / 1.8 TFSI owners usually ask before choosing a rebuilt, reconditioned or used replacement engine.

A full reconditioned or rebuilt Audi A4 35 TFSI / 1.8 TFSI engine typically costs between £3,200 and £5,500 for the supply-only unit, depending on the specific engine code and condition.

Used engines start from around £800.
Fully rebuilt units with upgraded components and a 12-month warranty sit at the higher end of the scale.
Supply and fit labour will add approximately £500-£800 depending on the specialist.

-> Compare Audi A4 35 TFSI / 1.8 TFSI engine replacement quotes today.

The most common early warning sign is a distinct rattling noise from the engine bay during a cold start, which may fade as the oil warms up.

You may also notice the engine management light illuminating.
In severe cases, the engine may misfire, lose power, or fail to start entirely.
Ignoring these signs can lead to rapid catastrophic internal engine damage.

-> Get a diagnostic quote for your Audi A4 1.8 TFSI timing system.

Yes, if the vehicle is in good overall condition and valued above £8,000, a reconditioned engine replacement is a financially sound decision that restores reliability.

For older 2008-2012 models valued under £5,000, a high-quality used engine swap may offer a better return on investment.
Always compare multiple specialist quotes to ensure the replacement cost does not exceed 60% of the vehicle's current market value.

-> Check if your Audi A4 35 TFSI / 1.8 TFSI is a candidate for cost-effective replacement.

A straightforward supply and fit of a reconditioned Audi A4 35 TFSI / 1.8 TFSI engine typically takes 1 to 2 days at a specialist workshop.

This timeframe includes draining fluids, removing the old unit, and installing the replacement.
Necessary ECU adaptations and road testing are completed before handover.
Complex cases involving additional damage may extend this timeframe.

-> Book your Audi A4 35 TFSI / 1.8 TFSI engine supply and fit today.

The "1.8 TFSI" badge (2008-2015) denotes a 1.8-litre EA888 Gen 2 engine producing 120hp or 160hp.

The "35 TFSI" badge (2016-present) denotes a 2.0-litre EA888 Gen 3 engine producing 150hp.
The 2.0L variant was introduced to improve efficiency, reduce oil consumption, and meet stricter emissions standards while maintaining similar real-world performance.
Mechanically, the Gen 3 architecture features a revised timing chain setup and improved thermal management.

-> Confirm your exact engine code and get tailored Audi A4 35 TFSI / 1.8 TFSI quotes.

Why Choose Us

Compare Audi A4 35 TFSI / 1.8 TFSI Engine Prices Today

Don't overpay at the main dealer. Comparing quotes is free, no-obligation, and specific to your exact Audi A4 35 TFSI / 1.8 TFSI and engine code. Our vetted UK specialists provide transparent, itemised pricing for used, reconditioned, and rebuilt engines, ensuring you get the best possible value and peace of mind for your vehicle.

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