New turbo k03 1.8t Audi VW 150/180PS 53039880005 53039700005 53039900005 53039880013 53039700013 058145703B 058145703C 058145703D 058145703E 058145703H, 058145703L 06A145703H 06A145703L

New Turbocharger Replacement – Audi & VW 1.8T (B5/C5)

Revitalize the iconic performance of your 1.8 Turbo engine with this brand-new high-quality replacement turbocharger. Engineered for the longitudinal 20-valve powerplant, this unit is a direct "Plug & Play" solution designed to restore factory boost levels, fuel efficiency, and driving pleasure.

Vehicle Compatibility & Power Output

This turbocharger is a direct 1:1 replacement for models equipped with the 1.8T engine (longitudinal layout):

Technical Specifications & Cross-Reference

Match your original unit with the following manufacturer and OE numbers:

Key Product Features

• 100% Brand New: Zero-mileage unit. Every component, from the compressor wheel to the high-temp turbine housing, is factory-new.
• VSR High-Speed Balancing: The core assembly is balanced at extreme speeds to ensure quiet operation and eliminate vibrations that lead to premature bearing wear.
• OE Specification Actuator: The wastegate actuator is pre-calibrated to factory spring rates to ensure correct boost delivery and prevent ECU "Boost Deviation" errors.
• Durability for 20V Engines: Built with high-nickel alloys to handle the specific heat cycles of the 1.8T 20V engine.

Critical Installation Requirements

To protect your new turbocharger and ensure long-term reliability:

1. Oil Supply Line: The 1.8T engine is famous for "oil sludge" issues. Replacing the oil feed line is mandatory to ensure the new bearings receive immediate and clean lubrication.
2. Prime the Turbo: Before the first start, fill the oil inlet with fresh engine oil and manually rotate the compressor wheel.
3. Oil & Filter: Use only high-quality 5W-40 synthetic oil meeting VW 502.00/505.00 standards.
4. Coolant System: Check the coolant hoses and the auxiliary water pump (if equipped), as this is a water-cooled turbocharger.