Engine overhaul 1.4 TSI / TFSI CTKA (EA111) replacement engine

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

The 1.4 TSI/TFSI (EA111) with engine code CTKA is a widely used unit from the VAG Group (VW, Audi, SEAT, Skoda) — with known weak points that regularly appear at high mileage or with spirited driving. MIK Motoren does not simply restore this engine to factory standard; instead, it specifically eliminates the original design weaknesses. The result: a replacement engine that is better than factory.

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 weakness of this engine is its oil pump, which from the factory does not provide enough oil pressure and keeps causing failures. Without sufficient oil pressure, fault messages, rattling noises, and loss of power quickly appear and almost always lead to engine damage. For this reason, we rely on a specially developed oil pump that increases oil pressure across the entire rev range and protects the engine from wear.
• Reinforced pistons — When tuned for more power or driven sportily, this engine is increasingly prone to piston damage in the ring zone. It is not uncommon to see oil consumption of 0.5L/1000km or more, and compression as well as power 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 — As part of the overhaul, all components are precisely measured and machined. The bearing clearance between the individual components is set for lifetime and performance, ensuring particularly smooth engine running. Combined with high-quality bearing shells, this engine is then also ideally suited for the performance-oriented driver.
• Reinforced timing chain set — 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.

Overhaul scope — nothing more is possible

• Main bearings, connecting rod bearings, thrust washers
• Pistons & piston rings
• Cylinder bores
• Connecting rods
• Crankshaft (for full overhaul)
• Bearing ladder (for full overhaul)
• Oil pump
• Timing chain set / timing drive (complete)
• Shaft seals
• Cylinder head gasket & bolts
• Milling the sealing surfaces flat
• Valves, guides, valve stem seals
• Hydraulic lifters & 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, please 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 include VAT. Shipping and installation options available. Replacement engine delivery available on request.