How to Replace the Battery in a 1998 Mercury Mountaineer Key Fob

How to Replace the Battery in a 1998 Mercury Mountaineer Key Fob

If your Mercury key fob isn't unlock doors well, the battery surely must to be changed. In this article, we explained how to open your car key fob and change your Mercury key battery.

What size battery does 1998 Mercury Mountaineer keyless entry remote take

Replacing battery in keyless entry remote require flat head screwdriver and 1xCR2032 battery. Prepare these materials and tools before opening and make sure to match the type of your keyless entry fob's batteries.
  • flat head screwdriver
  • 1xCR2032 battery

Simple steps to change the battery in your Mountaineer's keyless entry remote

A small button battery installed in the your keyless entry remote. Accurately try to disassemble your remote key fob with pry tools. Remove 1 CR2032 battery with flat head screwdriver.

Replace old battery with new one CR2032. Every battery has a negative and positive side and if you put the wrong connector down, the current cannot go into your circuit board and make it work. Check position on battery, by "+" mark.

When the new battery installed, check remote key fob functionality by pressing buttons. If everything is functioning, assemble your keyless entry fob's body in reverse order.

The last thing to do is put your cover back on fob. Carefully try to put the two halves in place by hands from top to bottom. If your key shell tightly closed, we done. If not, repeat the last step.

How to replace the battery video instruction

How To Replace Mercury Mountaineer Key Fob Battery 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

Still not working? Buy new one

Frequently Asked Questions

Key fob of Mercury Mountaineer use 1xCR2032 batteries. Most CR2032 batteries are under $6 depending on the type, size packaging and brand you buy. You can take old battery to the store, to find a proper replacement.

Keyless entry remote in most of cases reprogramming not needed after battery change. If your remote key fob not working, recheck new battery voltage. If it is not help, read user's manual or contact local dealer.

Replacing your key fob battery is simple to do in 1998 Mercury Mountaineer. Most of car manufacturers think about customers and make a special hole for key fob disassembly.

The cost to change the battery inside remote key fob can run anywhere $50-600 depending on the car and the service pricing.

You should replace batteries inside remote key fob of Mercury Mountaineer at least once in three years. lifespan of battery vary on frequency of use, operating conditions and quality.

If your car key fob buttons not working, has low key battery indicator on dashboard, need multiple clicks to unlock or lock doors or fob's battery more than 4 years old, in most cases battery change in keyless entry remote required. Installed battery is discharged with a high probability, but if it's not help to fix issues, key replace or repair needed.
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Fob Compatibility:

  1. FCC ID: CWTWB1U331
  2. Models: 1998-2010 Mercury Mountaineer