# 2008 Peugeot 405 - ATF in coolant **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** peugeot\ **Created:** [June 16, 2019, 5:22pm UTC](https://community.cartalk.com/t/2008-peugeot-405-atf-in-coolant/142382 "2019-06-16T17:22:14Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![UsmanAhmedGarba](https://avatars.discourse-cdn.com/v4/letter/u/82dd89/32.png) [@UsmanAhmedGarba](https://community.cartalk.com/u/UsmanAhmedGarba)\ **Post date:** [June 16, 2019, 5:22pm UTC](https://community.cartalk.com/t/2008-peugeot-405-atf-in-coolant/142382/1 "2019-06-16T17:22:14Z")
What mix ATF in radiator collant ---
**Author:** ![VOLVO-V70](https://avatars.discourse-cdn.com/v4/letter/v/8e8cbc/32.png) [@VOLVO-V70](https://community.cartalk.com/u/VOLVO-V70)\ **Post date:** [June 16, 2019, 5:54pm UTC](https://community.cartalk.com/t/2008-peugeot-405-atf-in-coolant/142382/2 "2019-06-16T17:54:52Z")
You don’t put ATF ( Automatic Transmission Fluid ) in a radiator . And if you did you need to have a mechanic drain , flush and refill with the proper mix of water and anti freeze. ---
**Author:** ![Renegade](https://avatars.discourse-cdn.com/v4/letter/r/b4bc9f/32.png) [@Renegade](https://community.cartalk.com/u/Renegade)\ **Post date:** [June 16, 2019, 6:02pm UTC](https://community.cartalk.com/t/2008-peugeot-405-atf-in-coolant/142382/3 "2019-06-16T18:02:26Z")
I think o p mean’s he has ATF entering radiator from bad trans, cooling line’s inside radiator, ---
**Author:** ![VOLVO-V70](https://avatars.discourse-cdn.com/v4/letter/v/8e8cbc/32.png) [@VOLVO-V70](https://community.cartalk.com/u/VOLVO-V70)\ **Post date:** [June 16, 2019, 6:04pm UTC](https://community.cartalk.com/t/2008-peugeot-405-atf-in-coolant/142382/4 "2019-06-16T18:04:49Z")
Renegade , you might be correct . But this lousy Ask Someone feature gets so many vague questions it is almost impossible to know what they want at times. ---
**Author:** ![Renegade](https://avatars.discourse-cdn.com/v4/letter/r/b4bc9f/32.png) [@Renegade](https://community.cartalk.com/u/Renegade)\ **Post date:** [June 16, 2019, 6:10pm UTC](https://community.cartalk.com/t/2008-peugeot-405-atf-in-coolant/142382/5 "2019-06-16T18:10:17Z")
Agree I don’t remember near so many vague question’s before the ask someone feature, ---
**Author:** ![anon86613489](https://avatars.discourse-cdn.com/v4/letter/a/ad7895/32.png) [@anon86613489](https://community.cartalk.com/u/anon86613489)\ **Post date:** [June 16, 2019, 6:25pm UTC](https://community.cartalk.com/t/2008-peugeot-405-atf-in-coolant/142382/6 "2019-06-16T18:25:10Z")
Not to mention that the production of the Peugeot 405 ended in 1995. Correction. It seems that they are built even today as CKD kits for Egypt and Iran. ---
**Author:** ![GorehamJ](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/gorehamj/32/24103_2.png) [@GorehamJ](https://community.cartalk.com/u/GorehamJ)\ **Post date:** [June 17, 2019, 1:38pm UTC](https://community.cartalk.com/t/2008-peugeot-405-atf-in-coolant/142382/7 "2019-06-17T13:38:50Z")
Our 12th ever Peugeot post. ---
**Author:** ![anon86613489](https://avatars.discourse-cdn.com/v4/letter/a/ad7895/32.png) [@anon86613489](https://community.cartalk.com/u/anon86613489)\ **Post date:** [June 17, 2019, 2:28pm UTC](https://community.cartalk.com/t/2008-peugeot-405-atf-in-coolant/142382/8 "2019-06-17T14:28:17Z")
> [@GorehamJ](#): > > Our 12th ever Peugeot post. Going by that number, Peugeots must be extremely reliable. 🤣 Okay, I’m gonna dig myself a trench now. 😨 ---
**Author:** ![art1966](https://avatars.discourse-cdn.com/v4/letter/a/77aa72/32.png) [@art1966](https://community.cartalk.com/u/art1966)\ **Post date:** [June 17, 2019, 2:51pm UTC](https://community.cartalk.com/t/2008-peugeot-405-atf-in-coolant/142382/9 "2019-06-17T14:51:56Z")
1. What is a “CKD kit”? 2. What is “ask some one feature”? 3. I note that the OP, presumably not a native English speaker, speaks English better than I speak any other language. ---
**Author:** ![VOLVO-V70](https://avatars.discourse-cdn.com/v4/letter/v/8e8cbc/32.png) [@VOLVO-V70](https://community.cartalk.com/u/VOLVO-V70)\ **Post date:** [June 17, 2019, 3:09pm UTC](https://community.cartalk.com/t/2008-peugeot-405-atf-in-coolant/142382/10 "2019-06-17T15:09:45Z")
A web search show that CKD stands for ’ Completely Knocked Down " . That means the parts for something are shipped to another place for assembly . The ’ Ask Someone ’ is on the main Car Talk page and our over worked monitors have to sort them out and move them to the community page. ---
**Author:** ![shanonia](https://avatars.discourse-cdn.com/v4/letter/s/9de053/32.png) [@shanonia](https://community.cartalk.com/u/shanonia)\ **Post date:** [June 17, 2019, 6:50pm UTC](https://community.cartalk.com/t/2008-peugeot-405-atf-in-coolant/142382/11 "2019-06-17T18:50:58Z")
Is there ATF in the radiator coolant? If so, an internal leak in the radiator is likely. The ATF is piped to a section in the bottom of the radiator to cool the ATF. If there is mixing of the coolant and the ATF, inside the radiator is where it is happening. You want that fixed quickly to prevent expensive damage to the transmission. Good luck and please keep us informed.