Ford developed a new fluid starting in 1997 called Mercon V. This replaces Mercon on some transmissions but in 1997 only two. The 4R44E & 5R55E. All other transmissions use Mercon. Using the wrong fluid can cause problems. I suggest you look on the dipstick or in your owner's manual to see which fluid you need. If you cannot find the information there, call your local Ford dealer and be specific about your vehicle. Make sure they understand that Mercon V is only to be used in these 2 transmissions. You may need to crawl under the vehicle and see exactly which transmission you have installed. Do not just take someones word on this. Be sure they know or you may do harm to the transmission.
Motorcraft MERCON automatic transmission fluid ( 2.64 pints / 1.25 liters ) is used in the transfer case of a 1997 Mercury Mountaineer
In a 1997 Mercury Mountaineer : ( 4R70W )
According to the 1997 Mercury Mountaineer owners manual : Your 4R70W automatic transmission capacity is ( 13.9 quarts ) * that of couse would be for the transmission , torque converter , lines , transmission cooler , etcetera *
Your 1997 Mercury Mountaineer came from the factory with ( Motorcraft MERCON automatic transmission fluid ) in your 4R70W automatic transmission ( the type that you are supposed to use should be engraved in your automatic transmission fluid dipstick just to confirm )
If you have a 1997 to 1998 Mercury Mountaineer or Ford Explorer with a V8 engine, you will have a 4R70W transmission.
According to the 1997 Mercury Mountaineer Owner Guide : ( the 4R70W automatic transmission used in two wheel drive and all wheel drive versions takes Motorcraft MERCON automatic transmission fluid ) * the type used should be engraved into the automatic transmission fluid dipstick *
According to the 1997 Mercury Mountaineer owners manual : Your 4R70W automatic transmission takes ( Motorcraft MERCON automatic transmission fluid ) * the type that is used should be engraved into your automatic transmission fluid level dipstick *
The first model year for the Mercury Mountaineer SUV was ( 1997 )
According to the 1997 Mercury Mountaineer owners manual : ( 13.9 quarts / 13.2 liters ) for the 4R70W automatic transmission ( rear wheel drive and all wheel drive ) ** that would be for the entire system , transmission , converter , lines , etcetera **
I believe that is a 4R70W
Inside the transmission. Pan must be removed to access the filter.
In a 1997 Mercury Mountaineer : r134a