Martyn85 Posted July 29, 2017 Posted July 29, 2017 Hi, all had my car read yesterday, and I've got code p3138 which is variable intake manifold, switchover valve; regulation difference. Has anybody had this fault before and could shed some light on it for me please? I've had the glow plug light flashing that's why I had the codes read.
Trevor Posted July 31, 2017 Posted July 31, 2017 I would advise running a fuel cleaning solution through the engine and also one for the intake as it sounds like the valves are sticking with carbon build up. Possibly try Terraclean treatment and I believe that they come out to your home or workplace to clean the engine through 1
Martyn85 Posted July 31, 2017 Author Posted July 31, 2017 Thanks for th reply Trevor, I have a fuel cleaner ready to put it just waiting to use up my remaining diesel. For the intake what solutions are out there for that as I've never owned a diesel before I've always been a petrol kind of man. I was maybe thinking of a terraclean as a last solution.
Serdar Posted April 18, 2019 Posted April 18, 2019 Hi, I've got the same error p3138 in my audi a3 8p s-line 170hp. How did you figure out to fix this problem?
Martyn85 Posted April 30, 2019 Author Posted April 30, 2019 On 4/18/2019 at 9:59 AM, Serdar said: Hi, I've got the same error p3138 in my audi a3 8p s-line 170hp. How did you figure out to fix this problem? Hi, my car eventually went Into limp mode took it back to where I bought it from (still under warranty) had it looked at and the dpf was fully blocked. I went 50/50 with the owner and had dpf delete and remap. Not one problem since. Coming up to two years soon
Muhith khan Posted October 13, 2019 Posted October 13, 2019 Hi I got an Audi A3 2007 1.8tfsi I got the p3138 code It comes up as switchover manifold valve what das a switchover valve look like please anyone
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