Engine Overhaul 1.4 TSI / TFSI (EA111) Replacement Engine

Engine overhaul 1.4 TSI / TFSI (EA111) replacement engine — better than factory fresh

The 1.4 TSI/TFSI (EA111) with the engine code in this series is a widely used unit from the VAG group (VW, Audi, SEAT, Skoda) — with known weak points that regularly show up at high mileage or with sporty driving. MIK Motoren does not simply restore this engine to factory standard, but specifically eliminates the original design weaknesses. The result: a replacement engine that is better than factory fresh.

MIK upgrades — why this engine lasts longer

The 1.4 TSI/TFSI (EA111) has specific engine-side weak points that we know from years of hands-on experience. Our upgrades are not a marketing gimmick — they are the direct answer to the most common failure patterns.

• Upgraded oil pump — The biggest weak point of this engine is its oil pump, which does not deliver enough oil pressure from the factory and repeatedly leads to failures. Without sufficient oil pressure, warning messages, rattling noises, and loss of power quickly appear and almost always lead to engine damage. For this reason, we use a specially developed oil pump that increases oil pressure across every engine speed range and protects the engine from wear.
• Reinforced pistons — When tuned for more power or driven hard, this engine is more prone to piston damage in the ring area. It is not uncommon for oil consumption of 0.5L/1000km or more to develop, while compression and performance drop noticeably. The increased temperature in the combustion chamber then puts particular strain on the pistons and valves. Modified pistons, improved piston rings, and a specially honed cylinder surface provide the remedy.
• High-quality bearing shells — During the overhaul, all components are precisely measured and machined. The bearing clearance between the individual components is set for lifetime and performance, ensuring especially smooth engine operation. Combined with high-quality bearing shells, this engine is also ideally suited for the performance-oriented driver.
• Reinforced timing chain kit — The increased wear of the timing chain is largely related to the chain's design and the freedom of movement of the chain links on the guide rails. A modified chain design, along with a special guide rail geometry, ensures maximum lifetime of the timing chains in this engine.

Rebuild scope — there is nothing more

• Main bearings, connecting rod bearings, thrust washers
• Pistons & piston rings
• Cylinder bores
• Connecting rods
• Crankshaft (for full overhaul)
• Bearing saddle (for full overhaul)
• Oil pump
• Timing chain kit / timing drive (complete)
• Shaft seals
• Cylinder head gasket & bolts
• Machining sealing surfaces flat
• Valves, guides, stem seals
• Hydraulic tappets & roller rocker arms
• Camshafts (for full overhaul)
• Camshaft adjusters (for full overhaul)
• Oil spray nozzles
• Oil pan & timing cover
• Ultrasonic cleaning of all components
• Grinding, honing & polishing
• LIVE documentation via app

Vehicle compatibility

This replacement engine is compatible with: VW Golf V/VI, Polo, Touran, Tiguan; Audi A1, A3; SEAT Leon, Ibiza; Skoda Octavia, Fabia. If you have any questions about vehicle compatibility, feel free to ask before ordering.

Variants & prices

Partially overhauled / No additional service: from €3819.00 | Partially overhauled / Removal & installation: from €7408.00 | Partially overhauled / Vehicle pickup + removal & installation: from €8565.00

All prices incl. VAT. Shipping and installation options can be selected. Replacement engine delivery available on request.