A 2017 Peugeot 208 in Nottingham, bought at auction, every key missing. The job came with two complications that surfaced during the work: three missing wafers in the ignition barrel, and a BSI immobiliser lockout after the first key programmed in. We fitted new wafers, ran a BSI reset, and finished with three working keys and a restored barrel.
The call
On paper this was a straightforward AKL: 2017 Peugeot 208, HU83 blade profile, three keys required. Standard kit - HU83 Lishi, blanks, Autel IM608 - went out on the van.
Two things about this one were worth knowing up front. First, Peugeot 208s of this era are known for BSI quirks. The BSI is Peugeot's main body and security module, handling the handshake between the new key, the immobiliser, and the engine control unit. On AKL jobs it can throw an immobiliser lockout after the first new key is written, refusing further attempts until it's been reset. Second, auction cars often arrive with mechanical issues no one's flagged on the sale paperwork - worth checking the barrel as thoroughly as the electronics.
How we replaced the keys
First step on site was access. The HU83 Lishi went on the driver's door - tool in, wafers lifted, cylinder turned. Inside the car we moved to the ignition.
Decoding the ignition picked up an unusual problem. Three wafer positions in the barrel read as empty on the Lishi gauge - no wafers there at all, just open slots. Not a state any car leaves the factory in; someone had opened the barrel at some point and three wafers had either been lost or removed. The previous owner had presumably been starting the car with a key that didn't need those positions engaged.
We fitted new wafers to the three empty positions, bringing the barrel back up to a full set. Three blades cut to match on the van.
Programming started on the Autel MaxiIM IM608 PRO II via OBD. The first key wrote into the immobiliser's approved list on the first attempt. The second was where the BSI lockout kicked in - the immobiliser refused to authenticate further writes and the programming tool couldn't continue.
The fix on a 2017 208 is a BSI reset. Procedure: disconnect the negative battery terminal, leave it off for 10 to 15 minutes, reconnect, then lock and unlock the car with the newly programmed key before starting the engine within about a minute. That sequence is the BSI coming back up from cold and accepting the approved-list state.
With the reset done and the car back under power, programming ran through cleanly. The remaining keys wrote into the approved list, and every previously known key was wiped from the immobiliser on the same session.
Outcome
Three working keys in the customer's hand. An ignition barrel with a full set of wafers again. Car started on the new set. Job completed despite two stacked complications.
Peugeot 208 refusing to accept new keys, missing wafers in the ignition, or throwing an immobiliser lockout mid-programme? We come to you - Nottingham and the East Midlands, on-site AKL programming and mechanical barrel work. Year and model on the phone and we'll bring the HU83 Lishi, spare wafers, and the time for a BSI reset if it's needed.
Published: 15th January, 2026 | Updated: 22nd April, 2026