BMW HP2 Enduro, Megamoto and Sport Key Replacement

Quick answerEvery HP2 is an EWS bike. BMW's rider's manuals for the HP2 Enduro, HP2 Megamoto and HP2 Sport describe a main key and a reserve key with electronics inside, read through a ring antenna in the ignition lock, plus a third key that only removes the seat. A lost ignition key has to be replaced with a transponder key that the bike accepts, so a cut-only copy will not start the engine.

BMW HP2 Enduro, Megamoto and Sport key quick facts

BMW's manuals for all three HP2 models say you are provided with a main key, a reserve key and a key for removing the seat.
The HP2 Megamoto and HP2 Sport manuals say the ignition switch and steering lock and the tank filler cap lock are operated with the same key.
The seat is not held by a keyed latch: the manuals show a screw that is undone with the seat key, after which the seat pulls back off its holders.
If the key is not recognized, the HP2 Enduro and Megamoto show an EWS warning on the display and the HP2 Sport shows a key symbol.
BMW's manuals say replacement and extra keys come only through an authorized BMW Motorrad retailer, who must check the legitimacy of the request.
To have a lost key barred, the manuals say you must bring along all the other keys that belong to the motorcycle.

BMW HP2 Enduro, Megamoto and Sport key types by year

Years	Models	Key type	Chip	Notes
From 2006	HP2 Enduro	transponder key (EWS) plus seat key	yes	Main key, reserve key and seat key per the US rider's manual dated January 2006.
From 2007	HP2 Megamoto	transponder key (EWS) plus seat key	yes	Same key set per the July 2007 US manual. Ignition, steering lock and tank filler cap share the main key.
From 2008	HP2 Sport	transponder key (EWS) plus seat key	yes	Same key set per the December 2007 US manual. A key symbol in the display means the key was not accepted.

How the HP2 immobilizer behaves

The HP2 manuals describe EWS in the same terms as the R 1200 boxers the bikes are built from. An electronic component in each key exchanges continuously changing signals with the motorcycle through a ring antenna in the ignition lock, and the ignition is not enabled for starting until the key has been recognized as authorized. You do not set or arm anything.

The manuals also give a short checklist for a warning on the display: take any other motorcycle keys off the ring, because a second key can disturb the signal, then try the reserve key, and have a defective key replaced. If the reserve key starts the bike, the fault is in the first key and not in the motorcycle.

Need a key for your HP2 Enduro?

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Three keys, three jobs

The seat key is easy to lose track of, because it is rarely used. Without it the seat stays on, and on the HP2 Sport the onboard toolkit is underneath. The battery checks and several maintenance steps in the manuals also begin with removing the seat.

The fuel cap opens with the ignition key, so a bike with no main key cannot be refueled until a new key is made.

Main key: ignition switch, steering lock and tank filler cap, and it carries the EWS electronics
Reserve key: a second coded key, which BMW says to store separately from the ignition key
Seat key: a small tool-style key that turns the seat fastening screw and has nothing to do with starting the bike

Rare bikes, and why that matters for keys

HP2s were built in small numbers, and a used one may arrive with a single ignition key and no seat key. If that describes yours, sort it out while the one key still works: adding a key to a bike that still has a working one is a much simpler job than starting from none.

Some HP2s were set up for track use with different bodywork or relocated switches. Tell us about any changes around the ignition lock, since the ring antenna has to stay with the lock for a key to be read.

Replacing a lost HP2 key

BMW's own route is the dealer: you prove ownership, a key is ordered for the bike, and a lost key can be barred so it no longer starts the engine. A barred key can be reactivated later if it turns up.

A mobile visit covers the same ground at the motorcycle. We check photo ID and the registration or title, cut the blade, program the transponder so the EWS accepts it, and confirm the bike starts and the fuel cap opens. What can be done on site depends on the exact model and year, so give us those details and say how many keys you still have. If the seat key is the only thing missing, say so, because that is a different and smaller job.

Where to find the key code

The HP2 rider's manuals do not mention a key number tag. They direct owners to an authorized BMW Motorrad retailer for replacement and extra keys, and the retailer must check that the request is legitimate. Have the VIN from your registration or title ready.

What to have ready

Have this ready when you call or text

Year, make and model of the bike
Where the bike is parked
Whether you have any working key, a broken key or a key code
Photo ID and registration or title (we verify ownership before making a key)

BMW HP2 Enduro, Megamoto and Sport key FAQ

Does the BMW HP2 Enduro have a chip key?

Yes. BMW's rider's manual for the HP2 Enduro has an electronic immobilizer (EWS) section and says the engine can only be started with keys that belong to the motorcycle.

What is the small extra key that came with my HP2?

It is the seat key. On the HP2 Enduro, Megamoto and Sport the seat is held by a screw that the manuals show being undone with this key. It does not fit the ignition.

My HP2 Megamoto shows EWS on the display and will not start. Is the key dead?

Possibly, but check the simple things first. BMW's manual says to remove other keys from the ring and to try the reserve key. If the reserve key works, the first key needs replacing. If neither works, the bike needs diagnosis.

Can a lost HP2 key be blocked?

Yes. BMW's manuals say a retailer can bar an individual key so the engine will not start with it, and that all remaining keys must be brought along when that is done.

The immobilizer system on this bike

BMW Motorcycle EWS Immobilizer: Keys and the EWS WarningEWS is BMW Motorrad's electronic immobilizer.

More BMW models

Services for this bike

Motorcycle Key Turns but the Bike Won't Start: Key or Not?Watch the immobilizer or key light in the first seconds after you switch on.
Adding a Spare Motorcycle Chip Key: Who Can Program It?First check that your bike has a chip at all: many Japanese motorcycles sold in the US use a plain key, and a spare for those is simply cut.
Bought a Used Motorcycle With No Key? Here's What to DoA used or auction motorcycle without keys can usually get new ones, but plan on the full all-keys-lost process and bring the signed title or other transfer paperwork plus photo ID, since a locksmith or dealer has to tie you to the VIN.
Motorcycle Immobilizers Explained: HISS, KIPASS and MoreA motorcycle immobilizer is an anti-theft system that only lets the engine start when it recognizes a coded chip in the key or a paired fob.

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Page last updated November 14, 2026.