SL/R230: Going to do tranny flush. what do i need to monitor oil temp to 45C

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Apr 12, 2019 | 01:55 PM

Dhunch22

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Junior Member

Joined: Apr 2019

Posts: 63

Likes: 11

From: MN, USA

SL550

Going to do tranny flush. what do i need to monitor oil temp to 45C

hi all,
just got a 2007 SL550 with 46k miles on it and will do couple things right away like ABC flush, top cover pump flush and transmission flush.
i got all the tools and liquids but i was wondering.. in one of the videos i noticed that when filling up the transmission fluid back into the pan
i need to monitor the temperature of the tranny oil to reach 45 degrees C.
what tool do i need to plug into OBDII where i will be able to see the transmission temp?

thank you all!

Apr 13, 2019 | 09:34 AM

gafitanu

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Joined: Jul 2008

Posts: 436

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From: Dartmouth, MA

1967 250SE, 2022 GLC300 2023 EQB300, 2018 AMG GT

STAR DAS software or a thermometer at the oil pan. Why would you do a transmission fluid flush at 46k miles?

Apr 13, 2019 | 10:23 AM

Dhunch22

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Junior Member

Joined: Apr 2019

Posts: 63

Likes: 11

From: MN, USA

SL550

Quote:

Originally Posted by gafitanu

STAR DAS software or a thermometer at the oil pan. Why would you do a transmission fluid flush at 46k miles?

thank you but I am looking for a cheap obdii tool I can plug in and read the temp of the fluid.
It is recommended to do a tranny flush ever 40k miles actually.

Apr 13, 2019 | 06:46 PM

Dhunch22

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Junior Member

Joined: Apr 2019

Posts: 63

Likes: 11

From: MN, USA

SL550

FYI,
i found what I was looking for at local Walmart.
It’s a Bluetooth OBDII plug and amongst many many other things it does display live transmission oil temp and that will do the trick