Mercedes-Benz GLE (incl. ML/M-Class) key replacement

Mercedes-Benz GLE (incl. ML/M-Class) keys by year

Why does the GLE key question depend so much on the year?

The GLE is the same vehicle line Mercedes used to call the ML, and then the M-Class lineage before that. The badge changed for the 2016 model year, but the key systems did not change on the same schedule. Under this one name you can find an early infrared SmartKey, a middle-era FBS3 key, and a current FBS4 fob. Each one is handled differently, and a quote that treats them all alike is a bad quote.

This page walks through the four generations we see: the W163 ML (this page covers 2000 through 2005), the W164 ML (2006 to 2011), the W166 (2012 to 2019, ML through 2015 and GLE from 2016), and the current V167 GLE (2020 to 2026). A year-by-year key table sits alongside this text. What follows is the reasoning behind that table, written the way I would explain it across the counter at the Wilshire Boulevard shop.

One thing runs through every era: these are not hardware-store keys. Even the oldest ones are tied to an electronic ignition switch, and that is where the real work happens. Below, where our data is verified, I say so plainly. Where it is conflicting or unverified, I tell you we confirm the exact setup by VIN before we commit to anything.

What does a W163 ML owner (2000 to 2005) actually need?

The early M-Class uses the black-plastic infrared SmartKey with a rolling code. Industry catalogs date that style on the ML from 1998 to 2006, though our data covers 2000 through 2005 under this page. Here is a wrinkle worth knowing: some catalogs file the early W163 under the older DAS2b scheme and others under DAS3. We treat it as DAS2b/DAS3 and, either way, it is specialist work on the electronic ignition switch (the EIS, also called the EZS).

The chip and system data for these years is verified. The key does not need an original on hand to be replaced, and an all-keys-lost situation is possible without going to the dealer. The car also has a mechanical backup key, so a dead remote does not by itself strand you.

In practice, owners of these trucks come to us for a few reasons: the remote stopped syncing, the buttons wore through, the Chrome-key shell cracked, or the ignition switch itself is failing and the key will not turn. Those are different repairs. A shell replacement is not a programming job, and a failing EIS is not fixed by a new key. Part of our job is sorting out which problem you actually have before anything is cut or programmed.

What about the W164 ML (2006 to 2011)?

The W164 moved to FBS3, still an infrared rolling-code SmartKey, with no push-button start on these years. The W164 and X164 appear in the supported lists of Abrites and VVDI MB, two of the professional tools used for this work, and that includes all-keys-lost through EZS password calculation. Our data for 2006 through 2011 is verified.

That matters because it means a lost-key W164 does not have to become a dealer ordeal. A duplicate from an existing working key is the simpler path, and a full all-keys-lost job is the heavier one, but both are inside what a properly equipped specialist does.

These trucks are now old enough that the key electronics themselves are the weak point. The common complaints on this era are keys that stop syncing, dead batteries that kill the remote buttons first, and worn shells. If your key works sometimes and not others, bring the vehicle details and tell us exactly what the dash says. It helps us decide whether this is the key, the battery, or the ignition switch.

Is every W166 (2012 to 2019) the same, and what is the FBS4 question?

The W166 is where honesty matters most. It was sold as the ML through 2015 and renamed the GLE for 2016. KEYLESS-GO was optional, and the standard setup is an insert-and-twist ignition. Most of these cars are FBS3, and VVDI MB documents all-keys-lost on the W166 without removing the EIS, using online password calculation.

But the data is not clean for the later years. Mercedes' own fallback-process bulletin lists model 166 from July 2013 production among vehicles that can be FBS4. In our table, 2012 and 2013 are verified FBS3, while 2014 through 2019 are marked conflicting. That is the conflict, stated plainly: a late W166 might be FBS3 or might be FBS4, and the model year alone does not tell us which.

The difference is large. An FBS3 car is specialist-serviceable, all-keys-lost included, though vendor notes warn that late FBS3 builds may need current tool firmware for the password calculation. An FBS4 car is effectively dealer-only. So for any 2014-to-2019 truck, we confirm FBS3 versus FBS4 from the VIN and Mercedes' vehicle data before quoting. We do not assume from the year, and we will not tell you a price or a method until we know which system your car has.

If you are researching before you call, have your VIN ready. It is on the driver-side dash at the base of the windshield and on the door jamb sticker.

What changes with the V167 GLE (2020 to 2026)?

The current GLE has push-button start and a proximity fob, and by platform era it is FBS4 (DAS4). I need to be straightforward here: for these years our model-specific key documentation is unverified. The car launched well after Mercedes' switchover to FBS4, so FBS4 is the expectation, but we did not confirm GLE-specific procedures from a primary source.

What that means for you: added or replacement keys on these trucks are assumed to be dealer-only. The key is ordered against your VIN and enabled with Mercedes' Xentry diagnostic system. Expect a multi-day wait for a VIN-coded fob to arrive. We confirm the current procedure on each job rather than promising an independent-shop route that may not exist for your car.

There is still a mechanical backup key in the fob, so a dead fob battery will not leave you locked out or stranded. If the car says 'key not detected', start with the fob battery and the backup-key procedure in your owner's manual. That is often all it is.

Even on these newer cars, we are worth a call. Many problems that look like a bad key are really something else, such as a water-damaged fob or a fault in the keyless antenna or start button. Telling those apart saves you from paying for a dealer-ordered key you did not need.

Duplicate key or all keys lost: how does it differ by era?

Our data shows the same two things across the board: an original key is not required, and all-keys-lost is possible. But what that looks like in practice is not identical for each generation.

A duplicate is the easier situation. You still have a working key, so the car can be taught the new one with the existing key's help. That is the lighter-cost route in nearly every case, and the reason to get a spare made before the last one disappears.

All keys lost is a bigger job because there is nothing in hand to work from. Here is how it breaks down by era:

• W163 (2000 to 2005): all-keys-lost is possible without the dealer. The work centers on the EIS and is specialist territory.
• W164 (2006 to 2011): all-keys-lost is covered in the professional tool lists via EZS password calculation.
• W166, 2012 and 2013: verified FBS3, with all-keys-lost documented without removing the EIS.
• W166, 2014 to 2019: all-keys-lost is possible if the car is FBS3. If the VIN shows FBS4, it becomes effectively dealer-only.
• V167 (2020 to 2026): replacement is assumed to go through the dealer with a VIN-coded order; we confirm the current procedure per job.

What is the programming reality: mobile OBD work or dealer-only?

Here is the honest split. For the W163, W164, and early W166, the work is done by specialists with professional equipment, and our data lists no NASTF or SDRM secure-data requirement for those years. That is the work a mobile van can do on the spot, because the car stays where it is parked. It is not a case of plugging in a cheap programmer and pressing a button, and in several cases the process involves calculating the EIS password and sometimes using current tool firmware.

For late W166 trucks that turn out to be FBS4, and for the V167 generation, the situation flips. Those are dealer-only or effectively dealer-only. I would rather tell you that on the phone than send a van and then discover it at your curb. If your car lands in that category, we will say so, and we can still help with problems the dealer does not fix: the fob battery, a cracked shell on an older key, or diagnosing whether the key is even the problem.

One more point on method. Because the earlier cars carry an infrared SmartKey and an electronic ignition, a bad ignition switch can look exactly like a bad key. Programming a new key into a failing EIS will not solve anything. We check that first.

What affects the price of a GLE or ML key?

I do not quote numbers on a web page, because the honest answer depends on your specific truck. Here is what actually moves the cost:

• Which generation and key system you have: FBS3 specialist work and FBS4 dealer ordering are very different processes.
• Duplicate versus all keys lost: having a working key in hand is the lighter-cost situation.
• Whether the late W166 turns out to be FBS3 or FBS4, which we confirm from the VIN.
• The condition of the ignition switch. If the EIS has failed, it is a separate repair from the key.
• Whether you need a full key or just a new shell, a battery, or a repair to an existing key.
• How many keys you want made. Making a spare during the same visit is usually the more economical route than coming back later.
• Where the car is, and whether we come to you in a mobile van or you bring it to the shop. Our storefront is at 10740 Wilshire Blvd in Westwood.
• Dealer lead time on V167 fobs, since a VIN-coded order takes days rather than hours.

What are the common key problems on these trucks?

The problems differ by era, and the data points to a clear pattern. On the W163, W164, and W166, you most often see the same four issues:

• A failed or worn EIS/EZS ignition: the key is not recognized or will not turn.
• Aging SmartKey electronics that stop syncing with the car.
• A dead key-fob battery, where the remote buttons fail first.
• Cracked Chrome-key shells and worn buttons.

When should you call us, and when should you go to the dealer?

Call us first for any W163, W164, or W166 where you have lost the key, want a spare, or are not sure what is wrong. It does not matter whether you have a working key or none. We are one company, with a storefront and mobile vans, and we do not hand your call to a dispatch middleman. David, who owns the shop and leads the technicians, oversees how these jobs are done. We have been in business since 1987 and serve 140 cities across Los Angeles and Ventura counties.

Expect the dealer to be the real route for a V167 or for a late W166 that proves to be FBS4. In those cases the fastest thing we can do is tell you so quickly, help you gather the VIN and proof of ownership the dealer will want, and sort out any side issues like a dead fob battery or a fault that mimics a bad key.

Whoever you call, ask for their California BSIS LCO license. California requires locksmith companies to hold one, and a legitimate shop will give it to you without hesitation.

To get started, have your year, your VIN, and a description of what the car does when you try to start it. Then call (213) 577-1366, which we answer 24 hours a day, 7 days a week. You can also use the contact page, see our overview of car key services, browse other Mercedes-Benz key pages, or return to the Wilshire Lock & Key home page.

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