Hi, 2 weeks after my VW golf emissions software update I got the engine management light and limp mode. EGR valve diagnosed and replaced (luckily under warranty). 3 weeks later the problem has happened again. Garage scanner shows egr fault. VW were adamant that there is no relationship between the update and the erg failure, but there clearly is. It looks like I may have to replace the EGR Valve on my 2010 Octavia 2.0 Diesel 1Z5 Engine code BMM. I'll try cleaning it first but if that doesn't work can anyone recumbent the best place to purchase either OEM or a good pattern part. Many thanks Seems The fault code suggests an incorrect signal from the EGR potentiometer or a wiring fault. As it's a new EGR it points to a wiring fault. The plug to the EGR would obviously have been disturbed during the change, so possibly a wire has been broken or the plug hasn't been pushed back onto the EGR fully. Worth a check. VW Audi Seat Skoda 1.2 1.6 2.0 TDI CR EGR Delete Service. Are you experiencing the common failure of the EGR valve on your 1.2/1.6/2.0 TDI CR fitted in the VW Audi Seat Skoda Range? The average cost to replace the EGR valve is up to £600/£700.. Here at OMW Tuning we are able to blank off your valve and reprogram your vehicles ECU sorting the Year: 2017. Posted 18 September, 2020. It's obviously leaking when hot and pressurised. check all around the engine and underneath when the engine is fully warmed up and with the engine running. Could be a loose hose or a defective cap on the header tank. If not go to a local garage and ask them to do a pressure test. How to remove VW Golf Mk5, Jetta, Passat B6, Touran, Skoda Octavia 2, Seat Leon, 2.0 TDI (140 PS) EGR valve in 8 simple steps. Use this product to clean your EGR valve for Skoda Octavia Mk2 2.0 TDI 2010 - 2013 110hp / 81kW Diesel. 【TOP DEAL】⚡️ Order EGR valve for SKODA Octavia II Hatchback (1Z3) 2.0TDI 110 hp easily at AUTODOC Fast delivery and low prices Discover now for yourself . SHOPPARTNERSCLUB. Škoda Superb. Skoda Superb Mk II (2008-2015) Early EGR valve failure - known problem. Hi all, Thought it worth starting a new thread because it seems EGR valves are a know problem. Just had the EGR valve on my CR 170 fail at 37,00 miles and 34 months old during an important trip. Fortunately under warranty as £1600 to change! #ClaudeTube #ClaudeGarage #Fagaras #EGRSupport the channel making a donation at Follow it to the left and it’s bolted on to the egr valve. If you’re removing it to clean I think it’s 2 5 or 6mm hex bolts on the side of the egr and 3, 5 or 6mm hex bolts underneath 7MiWW.