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2015 300S Bump shifts all gears when it rains.

925 views 4 replies 4 participants last post by  ImperialCrown 
#1 ·
S AWD Abs sensor # 2 dies just replaced with new Mopar part from local dealer now the trans bump shifts when it rains. Fine all other times, don't know about snow yet. Ideas?
 
#2 ·
. . . S AWD Abs sensor # 2 dies just replaced with new Mopar part from local dealer now the trans bump shifts when it rains. Fine all other times, don't know about snow yet. . . .
From research it appears that the 5 speed transmission used in the 2015 Chrysler 300 was a continuation of the W5A580 5 speed rear wheel drive transmission (NAG1 unit) borrowed from Mercedes when Daimler owned the company. I would inspect transmission fluid for contamination and interrogate the transmission controller for diagnostic codes.
 
#3 ·
Just a minor point - this should be a TF8 trans. The 845RE was std on all retail V6 cars after 2014 - it is Chrysler Kokomo's version of the ZF 8HP45.

The Kokomo-built A580 (essentially a Chrysler-reengineered Mercedes 722.6, and originally the ZF 5HP30) did continue on in the Charger Pursuit through 2020.
 
#5 ·
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