Where to find the Wrench in Resident Evil 4 remake

In Chapter 13 of the Resident Evil 4 remake, Leon S. Kennedy must find a key to open the card reader in the incubation labs that will upgrade his keycard to level 3, allowing him to rescue Ashley from her temporary imprisonment.

Due to a few deceiving factors, this mission may be a bit more difficult than you might think. Here’s how to find the key.

Key location clues in Resident Evil 4 remake

After following the objective marker to the keycard reader in the Incubation Labs, you will find a grid covering the panel. Leon remarks to himself that he needs a key to open it. Despite the fact that there are red wrenches on various workbenches throughout this chapter, those aren’t the wrenches Capcom wants you to find. It can be a bit misleading!

Plus, a note on the floor above the Incubation Labs highlighting the word “tool” (a strong nod to the key in question) is also a bit confusing. According to the file titled “Case 2002-f: Escaped Test Subject,” the subject escaped cryogenic stasis, went on a killing spree, and was eventually contained. However, due to the wording, it’s unclear whether the wrench is in a corpse elsewhere in the level, or back in the test labs from which it initially escaped.

Where to find the location of the wrench

Don’t worry: we’re here to tell you that the test subject is, in fact back into cryogenic stasis. Equip the rifle you used (in our best weapons guide we recommend rolling the stingray), make sure the heat scope is attached and aim for the Regenerador that is in the tube in the southwest corner of the Incubation Labs floats. You can see the wrench outlined in his belly. (Do these things have a stomach?)

Image: Capcom via Polygoon

Before you start firing to break the tank and release the Regenerador, you should know that you can kill the top two parasites with one shot if you move slightly to the left of the tank. Once the glass breaks and the creature escapes, you’ll only have one parasite left to eliminate.

Grab the key, open the grille on the card reader and insert your keycard to start the upgrade process. As this is a survival horror game, it will take some time for the key to fully upgrade – you’ll need to defend against a horde of enemies in the Incubation Labs before the key is ready to retreat. Once it does, you’ll be one step closer to rescuing Ashley and escaping the underground facility.

Looking for more critical path advice? Our Resident Evil 4 remake walkthrough can help.