FEXON Trunk Latch Actuator for Mercedes E/ML Series — Direct-Fit Replacement, OEM-Style Motor

The FEXON trunk latch actuator is a direct-fit replacement for the rear tailgate latch on many Mercedes E- and ML-series models, restoring reliable lock and unlock function.

If your Mercedes tailgate won’t lock, unlock, or respond to the remote, a worn or failed latch actuator is often the cause. This FEXON unit is built to match OEM mounting points and electrical connections while using a durable motor and gear train for long service life. It replaces multiple Mercedes part numbers, making it an economical option for DIY repair or professional installation.

Which Mercedes models and part numbers does this replace?

This actuator fits a range of E- and ML-class model years and directly corresponds to several Mercedes part numbers. Confirm fitment and part compatibility before purchasing to ensure correct installation.

• Compatible models: 2004–2005 E320, 2006–2009 E350, 2004–2006 E500, 2007–2009 E63 AMG, 2008–2011 ML350, 2008–2011 ML63 AMG.
• Replaces part numbers: 937-907, 1647400500, 1647400635, A1647400500, A1647400635, 2117400235.
• Check vehicle VIN and current actuator part number to confirm match before ordering.

How durable and reliable is the FEXON actuator?

The unit uses a quality motor and wear-resistant gearwheel designed for repeated cycles. It’s produced to meet or exceed OEM standards, and each part is tested prior to shipping to reduce early-life failures.

• Built-in motor with reinforced gears for longer operational life.
• Manufactured from robust housing materials resistant to trunk environment wear.
• 100% tested before delivery to verify electrical and mechanical performance.

Is this an exact OEM part and how easy is installation?

While this FEXON actuator is an aftermarket product rather than a Mercedes-branded part, it is designed as a direct replacement with matching connectors and mounting points. Many owners can complete the swap with basic tools; professionals can finish installation quickly.

• Direct-fit design replicates OEM shape and connector layout for plug-and-play replacement.
• Works with existing latch linkage; no vehicle programming required in most cases.
• Recommended for technicians and experienced DIYers—refer to service manual for access steps.

What should I check before buying and after installing?

Confirm compatibility with your vehicle and the actuator’s part numbers. After installation, test locking/unlocking from remote, interior switch, and physical operation to ensure correct function and secure mounting.

• Verify part numbers on your original actuator match those listed above.
• Inspect wiring harness for damage and clean connectors before plugging in.
• Test tailgate operation through all control methods after fitting; re-torque fasteners if needed.

Who is this for: The FEXON trunk latch actuator is intended for Mercedes ML and E series owners, independent mechanics, and repair shops seeking a reliable, tested aftermarket replacement that matches OEM fitment. Choose this unit if you need to restore consistent tailgate locking/unlocking without paying OEM pricing, and if you have basic mechanical ability or access to professional installation. If you’re unsure about compatibility, check your vehicle’s part number list or consult a technician before purchasing.