Turbocharger BMW Z4

The autoKUR catalogue provides a comprehensive range of certified exchange turbochargers for BMW Z4. Each unit undergoes rigorous remanufacturing in specialized facilities to original manufacturer standards: complete disassembly, ultrasonic cleaning, systematic replacement of all friction and wear components (bearings, seals, gaskets) with brand-new OEM-grade parts, and high-speed dynamic calibration on digital balancing benches.

Available engine variants and applications

Select your specific vehicle specification to find the matching turbocharger:

• 35i 306 hp (3 ref.)
• 35is 340 hp (3 ref.)
• 20i 184 hp (2 ref.)
• 28i 245 hp (2 ref.)
• 18i 156 hp (1 ref.)

BMW Z4 model variants overview

Overview of available applications to assist in identifying your required specification:

Variant / Engine	Part Category	References
35i 306 hp	Certified exchange unit	3 part(s)
35is 340 hp	Certified exchange unit	3 part(s)
20i 184 hp	Certified exchange unit	2 part(s)
28i 245 hp	Certified exchange unit	2 part(s)
18i 156 hp	Certified exchange unit	1 part(s)

Diagnostics and wear symptoms

Typical warning signs of turbocharger degradation on BMW applications include:

• Sudden power loss during acceleration or vehicle entering limp mode.
• High-pitched whining or siren noise under boost pressure.
• Blue or black exhaust smoke indicating oil leakage past turbine seals.
• Oil pooling in charge air hoses or perceptible shaft play.

Core deposit and exchange procedure

All our turbochargers operate on an environmentally sustainable exchange unit model. A core deposit of €120 is added at checkout and fully refunded upon inspection of your old returned core. Two simple fulfillment methods:

• Immediate express dispatch: pay deposit at checkout, your part is dispatched in 24/48h. A prepaid return shipping label is provided for free return of your old core. Refund within 72 hours.
• Send old unit first: return your old core using our prepaid courier voucher. Your exchange unit is shipped upon receipt of your old core without deposit advance.

Detailed terms are outlined on our Core deposit policy page.

24-Month warranty & fast delivery

All units include a comprehensive 2-year contractual warranty. Delivery is free within mainland France, by Chronopost, the day after dispatch before 1 pm; dispatch times are shown on each product page.

Manufacturer warranty compliance

Under European Union Regulation (EU) No 461/2010 (Motor Vehicle Block Exemption), the use of OEM-matching exchange components fully maintains the vehicle manufacturer warranty on your BMW.