Performance - Citroen DS3 (2010-2016)

Product Description FMDV41 is our blow off valve solution for the PSA 1.2 PureTech engine, which is found in most Peugeots and Citroën models from 2017 till present (fitting engine code EB2ADT). This valve has been expertly manufactured and designed in the UK, meaning we can provide the industry leading valve for your vehicle. Specifically designed for the PSA 1.2 pure tech engine, this is a fully atmospheric (blow off) valve, so you can enjoy that fantastic “pshh” sound!            This valve is a fully engineered solution offering significantly improved reliability; this 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 retains the desirable OEM ECU control over valve actuation. Furthermore, heavier springs are available and are easy to swap in to suit your tuning needs if you add more power to your vehicle. Highlights: Utilising world leading springs for more precise operation and consistency All internal and external components have been made in the UK, ensuring top quality, and offering a valve with faster response times and longer service intervals. The piston uses heat stabilised Viton O-rings Lubricated with high temperature Mobil1 grease to ensure a long life with minimal wear and very long service intervals. A super durable and responsive aluminium piston Fully serviceable and rebuildable in minutes Available in anodised Black Unlike other valves on the market, ours produces no check engine lights (EML) Covered by the unique Forge Lifetime Warranty* Fitment: Citreon C3 2016> Citreon C4 Cactus Citreon C5 Aircross Citreon DS3 2016> Citreon DS4 2016-2019 Citreon DS5 2018> Jeep Avenger 2023> Peugeot 2008 2019> Peugeot 3008 2016> Peugeot 308 GTI 2015-2020 Peugeot 408 2016> Peugeot 5008 > 2017> Vauxhall Astra L 2021> Vauxhall Combo E 2018> Vauxhall Corsa F 2019> Vauxhall Crossland Vauxhall Grandland Vauxhall Mokka 2021>  

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The FMDVMCS is a sandwich type adaptor that fits between the existing electrical solenoid and the turbo charger housing on the BMW Mini Cooper S N14 engines 2007/08(R56/57 *), Peugeot 1.6 turbo engines as found in the 207 and GTI , 208 GTI, 307, 308 and Citroen DS3. fits: CitroënC5DS3(Pre 2016 Only)MiniSecond generation (R55/R56/R57/R58/R59) (2006–2015)R55 ClubmanPre LCI 2007-2009 N14/N18 R56 HatchbackPre LCI 2007-2009 N14R57 ConvertibleLCI 2010-2014Peugeot207 On these engines, built into the turbocharger housing, is a bypass facility. This allows charge air to be recirculated around the turbo charger from the boost side back to the intake side. This recirculation path is opened and closed by means of an electrical connection from the engine management, to a solenoid that is mounted on the turbocharger housing. As you accelerate, the turbo charger vanes are spinning and boost pressure is increased, literally blowing into the engine cylinders. Then when you change gear, you take you foot off the accelerator momentarily, select the next gear, and accelerate again. As you take your foot off the accelerator the throttle valve to the engine closes. The problem here is that during this process the turbo is still spinning and the boost pressure that it is producing has no where to go. (This is a bit like putting you hand over a hair dryer so the air cannot get out) What happens at this point is the turbo starts to stall, the spinning vanes slow down (incurring alot of stress) and the boost pressure drops. When you open the throttle valve again by pushing down on the accelerator (demanding more power) the turbo has lost its momentum, boost pressure and there is a pause or a "Lag" before the engine is producing the required power once again. To combat this loss of power and stress on the turbo, a recirculation or diverter valve is used. On the Mini, when the throttle valve closes, the engine management opens the recirculation route around the turbo. This gives the charge air an alternative route and allows the turbocharger to keep spinning so that when you accelerate again there is no "lag" or waiting period. This system works well and is adopted by nearly all vehicle manufacturers on turbo charged petrol engine applications. The only downside to this system is that a turbo chargers produce heat. (The hot air that leaves a turbo is cooled by passing it through an intercooler before it enters the engine. The cooler the air the more power is produced). By recirculating the hot air back into the intake side of a turbo the temperatures increase. This is where the Blow Off or Dump valve plays its part. By expelling the charge air to atmosphere rather than recirculating it, you do not increase the intake air temperature but you do allow the turbo to keep spinning. The side effect which is unacceptable to most vehicle manufacturers is the noise of the valve expelling the air. By fitting the FMDVMCS between the existing solenoid and the turbo housing (this involves removing only 3 bolts) the air is re-directed to atmosphere rather than recirculated. It should be noted that the engine management also uses this valve to decrease engine power when necessary. An example of this is by the (DSC) Dynamic Stability Control system. Although you would not normally hear this occurring, when a blow off adaptor is fitted you may well hear the air being expelled when the DSC operates (going too fast around a bend for example).   In The Box1 x FMDVMCS Adaptor3 x Socket Cap Bolts1 x Instructions1 x Forge Sticker In order that you purchase the correct valve for your vehicle please refer to the fitment table below before ordering. Product Code Fitment FM207V Recirc Valve N14 Engines Cooper S 2007-10, JCW Cooper S 2007-2012 FMDVR60R Recirc Valve N18 Engines Cooper S 2011 On, JCW Cooper S 2013 onwards FMDVMCS Blow Off Adaptor Plate For 2007/8 Cooper S Turbo only FMDVR56A Blow Off Valve N14 Engines Cooper S 2007-10, JCW Cooper S 2007-2012 FMDVR60A Blow Off Valve N18 Engines Cooper S 2011 On, JCW Cooper S 2013 onwards    This product is available in machined alloy finish only. N14 Engine Mini Mini R56 Cooper S 1598ccm 174HP 128KWMini R56 John Cooper Works 1598ccm 211HP 155KWMini R57 Cooper S 1598ccm 174HP 128KWMini R57 John Cooper Works 1598ccm 211HP 155KWMini Clubman R55 Cooper S 1598ccm 174HP 128KWMini Clubman R55 John Cooper Works 1598ccm 192HP 141KWMini Clubman R55 John Cooper Works 1598ccm 211HP 155KW   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.

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This Blow Off valve is for the Citroen DS3 1.6 Turbo engines, that have the electronically controlled bypass valves. 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. The problem is that diaphragm retaining ring is made from very thin plastic that goes brittle with heat cycles, and eventually fails. 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.  This prevents the diaphragm from sealing This particular failure can also result in the valve falling apart upon removal from the turbo, and in extreme cases, we have heard of bits of plastic entering the turbo resulting in serious damage. Our alternative is a fully engineered solution offering both 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. The valve has been proved on the VAG scene for many years. The spring is interchangeable for different levels of boost, and the solenoid is plug and play with the wiring harness which is included.   In The Box:1 x FMDVDS3A Valve1 x Solenoid, Bracket, and Screws1 x 2000mm of 4mm Vacuum Tube1 x Wiring Harness1 x Uprated Blue Spring10 x Cable Ties1 M6 x 16 Hex Head Bolt1 x M6 Plain Washer1 x M6 Nyloc Nut1 x M5 x 35 Self Tapper Screw1 x Instructions1 x Forge Keyring and Sticker

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This Recirculation valve (quiet in operation) is for the Citroen DS3 1.6 Turbo engines, that have the electronically controlled bypass valves. 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. The problem is that diaphragm retaining ring is made from very thin plastic that goes brittle with heat cycles, and eventually fails. 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. This prevents the diaphragm from sealing This particular failure can also result in the valve falling apart upon removal from the turbo, and in extreme cases, we have heard of bits of plastic entering the turbo resulting in serious damage. Our alternative is a fully engineered solution offering both 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. The valve has been proved on the VAG scene for many years. The spring is interchangeable for different levels of boost, and the solenoid is plug and play with the wiring harness which is included.   In The Box:1 x FMDVDS3R Valve1 x Solenoid, Bracket, and Screws1 x 2000mm of 4mm Vacuum Tube1 x Uprated Yellow Spring1 x Wiring Harness10 x Cable Ties1 M6 x 16 Hex Head Bolt1 x M6 Plain Washer1 x M6 Nyloc Nut1 x M5 x 35 Self Tapper Screw1 x Instructions1 x Forge Keyring and Sticker

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