Audi 1.8T 20V AUM Engine

Audi 1.8T 20V AUM Engine is identified in this product by its engine family and stated vehicle application. AUM is a transverse 1.8-litre, 20-valve turbocharged engine from the EA113 family, commonly rated at 110 kW (150 PS). It uses electronic engine management and variable cam timing on relevant applications. The AUM is found in selected A3, Golf and related models, while the exact turbo, ECU and emissions setup depends on the donor.

Audi 1.8T 20V AUM Engine engine specification and code

• Engine code: AUM
• Fuel: Petrol
• Configuration: inline-four
• Induction: Petrol, with aspiration and fuel system determined by the full engine code
• Listed vehicle: Audi 1.8T 20V AUM Engine

The badge, capacity and engine-family name provide a useful first check, but replacement fitment depends on the complete stamped code and vehicle data. Read the engine number and match it to the VIN, production date, gearbox and drivetrain. Where a catalogue entry uses a short code or groups models, ask the supplier to confirm the exact available unit. This avoids choosing an engine based only on a shared displacement or model badge.

Application and compatibility for AUM

Check whether the recipient is an Audi A3, TT or another Volkswagen Group model, then compare chassis, gearbox, driven wheels and VIN. AUM is generally a transverse layout and should not be assumed to fit a longitudinal A4/A6. Compare mounts, sump, turbo, wiring, ECU and intake hardware.

Compare the old and replacement assemblies before installation. Check sump shape, engine mounts, gearbox interface, starter position, intake and exhaust routing, coolant outlets, accessory brackets, sensors and electrical connectors. Establish whether the product is supplied as a long block or a dressed engine. Confirm which fuel-system components, turbo or supercharger, manifolds, wiring and accessories are included and which must transfer. Inspect reused parts before fitting, especially anything related to the original failure.

Parts to verify on the AUM engine

Ask whether the turbo, intake manifold, injectors, coil packs, engine loom and sensors are supplied. Confirm the full engine code and check cam timing hardware and throttle configuration. If substituting AUQ or AGU, obtain a parts-level interchange check because output and management components differ.

Installation and commissioning

Inspect timing belt, water pump, turbo oil lines, cam-chain tensioner and variable timing solenoid. Check charge pipes and intercooler for oil if the previous turbo failed. After fitment, scan for boost, cam timing and misfire faults, and verify oil pressure, coolant temperature and stable idle before road use.

Use the manufacturer’s service information for the recipient vehicle when selecting fluids and performing the first start. Resolve the original fault, refill and prime systems as required, then check oil pressure, coolant circulation, fuel connections and wiring grounds. Scan the engine and transmission electronics for stored faults. Verify stable idle, normal temperature, charging and leak-free operation before a road test. Record the complete engine code and any transferred components with the service paperwork. Document AUM transverse installation and 110 kW engine-management setup as part of the fitment notes, since this detail helps distinguish the installed version from related engines in the same product family.

Order the correct Audi 1.8T 20V AUM Engine

Send the VIN, vehicle year, gearbox, drivetrain and a clear photograph of the engine stamp when requesting fitment confirmation. Ask which full engine code is being supplied and whether the turbo, supercharger, injectors, manifolds, sensors and accessories are included. Resolve any mismatch between the product name, stock code and engine stamping before purchase. Browse the engine and gearbox catalogue and compare the listed unit with your original.

For further technical context, consult Audi A3 1.8T AUM engine data. This reference can help explain AUM transverse installation and 110 kW engine-management setup, while final compatibility should be confirmed against the recipient VIN and engine number. Choosing a correctly identified Audi 1.8T 20V AUM Engine gives the installer a clear basis for component matching and commissioning.