Valvola atmosferica migliorata Mercedes Classe A W176 Classe B W246 CLA C117 GLA X156 GLC X253 M270/M274 Engine

Product Description

We recommend servicing your valve every 3 years, or 20,000 miles, whichever comes sooner

This Blow Off, or Dump valve, is for the Mercedes 2.0 Turbo GDi engine found in the CLA250 that has the electronically controlled bypass valve. It is recommended for any vehicle where the boost pressure has been increased by an ECU software upgrade and for unmodified vehicles operating in warmer climates, as a solution to the many failures that have occurred where the original rubber diaphragm splits, which causes a loss of boost pressure. Unfortunately the failure doesn’t always result in a check engine light as the valve can still be blown open by the boost pressure, so you may not be aware that you are losing power due to this.

Our alternative is a fully engineered solution offering significantly improved reliability. Our valve is piston based with no diaphragm to fail, and of all aluminium construction. It replaces the original unit with a pressure/vacuum operated piston valve that still also retains the desirable OEM ECU control over valve actuation.

All parts require for installation are included, together with full installation instructions.

Check your vehicle compatibility: Click here

Please Note: In line with our policy to constantly review, revise, and improve our product range, the appearance of the product you receive may differ from the one advertised.
Click the triangles to find your car make and model. Note that the models listed here have either had the part fitted by us or a customer or they are listed as being compatible on industry parts databases. Where it has not been directly fitted by Forge there will then be a separate May Also Fit tab where the make and model will also appear and which details our no-risk approach to purchasing this product, so it is worth checking there as well.

Infiniti
2.0T

Mercedes

A Class W176 (2012-2018)
A160
A180
A200
A220
A250

B-Class W246 (2011-2018)
B160
B180
B200
B220
B250

CLA Class C117 (2013-2019)
CLA180
CLA200
CLA250

GLA Class X156 (2015-2019)
GLA180
GLA200
GLA250

GLC Class X253 (2015-2019)
GLC200
GLC250