Atmospheric Dump Blow Off Valve for Mercedes-Benz A45 GLA45 CLA45 with M133 Engine Black

Upgrade your turbo system and restore confident throttle response when you push the pedal down. This atmospheric blow off valve unblocks the factory port on your pre‑facelift A45, CLA45, or GLA45 AMG. Standard maps leave this spot covered, but heavy acceleration or a custom ECU tune can trap pressure and make the car feel sluggish. Routing the excess air outside keeps your turbo spinning smoothly and extends its lifespan.

Built entirely from solid anodized aluminum, this unit matches the original mounting points perfectly. You get direct bolt‑on installation with every necessary clip and bracket in the box. The valve opens safely to atmosphere, giving you that unmistakable sharp feedback on lift‑off while keeping intake air clean. It is designed to be fully serviceable, so maintenance stays simple over time.

• Performance tuning companion Pairs seamlessly with ECU remaps to prevent driveability loss under hard load.
• Natural boost management Vents pressurized air externally, protecting compressor wheel stress during quick shifts.
• Rust‑resistant finish Anodized aluminum surface stands up to heat cycles and road grime without fading.

Your daily commuter route and weekend track days both benefit from cleaner airflow. Leave the physical setup to a professional mechanic who understands boost control. Custom tunes dictate how the valve reacts, so proper calibration ensures consistent power delivery. You will appreciate the steady throttle mapping that follows.

Benefits & Tips

1. Tune before you mount Adjust your fuel and ignition timing first, then install the valve to guarantee smooth spool.

2. Listen for a clean sweep The atmospheric vent delivers a crisp release sound without restricting forward momentum.

3. Secure the vacuum line Route the supplied T‑piece alongside factory hoses to avoid heat damage or rattles.

Specifications

• Model BOV1132 atmospheric dump valve
• Material Machined aluminum with anodized black coating
• Vent Action Open to atmosphere for direct sound and pressure relief
• Fitment Pre‑facelift Mercedes‑Benz A45, CLA45, GLA45 AMG with the 2.0 litre M133 turbo engine
• Compatibility OEM direct replacement with complete hardware included

Package Includes

• Parts 1x atmospheric blow off valve
• Accessories All required mounting clips and vacuum hose T‑piece

Warnings & Reminders

Professional installation is mandatory and no fitting guide is packed inside. Always verify engine compatibility with your VIN before ordering. Allow minor measurement variations due to manual listing preparation.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

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