Speedometer is off afterZF 8 speed transmission service

piston36 · 05-31-2020, 02:49 PM

I recently had my transmission serviced on my 2016 340ix with zf8. Now my speedometer is off by approximately 20 mph. At 60 mph on my GPS, the car says 80mph. Does anyone know why this would be and how I could recalibrate?

Thank you,

Paul

COKen · 06-01-2020, 08:56 AM

I would talk with the people who did the transmission service.

Gen13 F36 · 06-01-2020, 10:21 AM

Is your speedo in kilometers?

Orion4 · 06-01-2020, 04:43 PM

Quote:

Originally Posted by Gen13 F36

Is your speedo in kilometers?

Dont think that is the issue. 60 MPH = 96.5 KMH

Wires · 06-01-2020, 06:00 PM

What COKen said. Sounds like they screwed up the speed output off the tranny.

05-31-2020, 02:49 PM	#1
piston36 Registered 0 Rep 1 Posts Drives: 2016 BMW 340ix Join Date: Jan 2019 Location: Seattle iTrader: (0)	Speedometer is off afterZF 8 speed transmission service I recently had my transmission serviced on my 2016 340ix with zf8. Now my speedometer is off by approximately 20 mph. At 60 mph on my GPS, the car says 80mph. Does anyone know why this would be and how I could recalibrate? Thank you, Paul
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06-01-2020, 08:56 AM	#2
COKen Lieutenant Colonel 981 Rep 1,560 Posts Drives: M Rster / Z4 M40i / X5 M50i Join Date: Dec 2013 Location: Colorado iTrader: (0)	I would talk with the people who did the transmission service. __________________ 2002 M Roadster, Steel Gray Metailic, Gray Nappa Leather, HT, TC Kline DA Shocks & Camber Plates, w/H&R Springs, Stromung Exhaust, SSR Type C. Looking for new home. 2022 Z4 M40i, Misano Blue Metallic, Driver Asst Pkg, Prem Pkg 2023 X5 M50i, Phytonic Blue, Black Extended Merion Leather, Driving Asst Pro Pkg, Park Asst Pkg, Exec Pkg, Climate Comfort Pkg.
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06-01-2020, 10:21 AM	#3
Gen13 F36 Brigadier General 1599 Rep 3,748 Posts Drives: 428i Gran Coupe Join Date: Nov 2017 Location: Los Angeles, CA iTrader: (1)	Is your speedo in kilometers?
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06-01-2020, 06:00 PM	#5
Wires Brigadier General 1646 Rep 4,877 Posts Drives: 2016 340i xDrive Join Date: Apr 2008 Location: Calgary iTrader: (0)	What COKen said. Sounds like they screwed up the speed output off the tranny.
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