Bmw Valvetronic Delete
By the Editorial Staff
March 16, 2026
I have a problem with a BMW N55 335i, we have problems with the Valvetronic and want to get rid of the system, as it seems that ecu is broken. Can someone deactivate the valvetronic on this ECU? twitter Facebook Digg Google StumbleUpon del.icio.us My Yahoo!
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > Valvetronic delete, is it this easy? RE: BMW N55 MEVD17 Valvetronic delete / disable - kami2k - 19-10-2024 (19-10-2024, 01:01 AM)koziol Wrote: Is it posible to permanently disable valvetronic? having issue on e70 n55 engine, The entire engine was developed to work with the Valvetronic. The throttle valve is only intended as a backup solution.
The BMW Valvetronic system is a complex but essential part of your engine, and it's important to keep it running properly. If you're having any issues with your Valvetronic system, don't hesitate to take it to a qualified BMW service center. ExtraTool - utility that can disable variable valve system Valvetronic on BMW cars and the XDRIVE all-wheel drive system.
Just a few examples. BMW 750i G11 N63TU engine had the following errors: 0x118502 mixture adaptation (mixture too rich/fat), 0x140010 misfiring several cylinders, bank 2. BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i) > Technical / Specific Topics > 135i Turbo Engine (N54 / N55), Exhaust and Drivetrain Modifications Valvetronic deactivated.
318 2005, N46; Valvetronic Disable? Jump to Latest 7.4K views 4 replies 4 participants last post by agcobile.boqwana Feb 17, 2025 AlainProst1 Discussion starter. BMW VVT / Valvetronic delete / disable by Tomba Thu Mar 15, 2018 9:59 am Dear members, I'm trying to disable the VVT / valvetronic on an E70 X5 4.8i N62 engine. All valvetronic parts are replaced (eccentric shafts, guiders, etc €!) but the car still runs very rough on cold starts.
You need to keep engine speed below 1500rpm to avoid. Valvetronic is, most probably, the most hated hub of the BMW engine. In the same time, it's "last hope" of the engine repair specialists - if they are not able to find the cause of the problem, most probably, Valvetronic will be the one to blame.
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