Opel key replacement in Tenerife — from a dead remote battery to a lost-all-keys.

Most Opel remotes and flip keys — Corsa D/E, Astra H/J/K, Insignia, Meriva, Zafira, Mokka — use a CR2032 coin cell, and most Stellantis-era Opels (Corsa F, new Mokka, Crossland, Grandland, Astra L) do too. Some older remotes and a few flip keys use a thinner cell such as a CR2016 or CR1620. The safest move: pop the key open, read the number printed on the old battery, and match it. One tip that saves a lot of grief — the most common reason a remote stops working right after a battery swap is the new battery going in upside down, so note which way the plus (+) side faces before you pull the old one. It’s a €3 part at any ferretería or supermarket; no reprogramming needed for a battery swap.

If you turn a key, nothing changes: the immobilizer chip in the head needs no battery, so the car starts as normal — only the remote buttons stop working. On a keyless Opel with push-button start, press the brake (or clutch) and hold the key against the backup reading spot your owner’s manual shows, then press START/STOP. The metal blade inside the key unlocks the driver’s door by hand. If a fresh, correctly-seated battery still doesn’t bring the remote back, that’s a programming or hardware issue — text me and I’ll sort it on-site.

Spare or extra key starts at €60 for a transponder key, from €120 for a remote-head or flip key, and from €200 for a keyless smart key, if I supply. Less if you bring your own reputable aftermarket remote. All-keys-lost starts at €200 for most transponder and flip keys, or from €200 for a keyless push-to-start key. A second key made the same visit costs less than coming back for it later — I put that number in your written quote. Remote programming on its own starts at €60. Older transponder Opels sit at the floor; keyless models (higher-trim Astra K, Insignia B, Grandland, new Mokka) sit higher because the key hardware costs more. A battery swap you can do yourself for about €3.11.

For most GM-era Opels with Keyless Open & Start (Astra K, Insignia B), yes — it takes a bit longer than an older transponder job, but it’s still one trip to your car, no tow. Stellantis-era Opels from about 2021 (Corsa F, Mokka, Astra L, new Grandland) can need online coding through the maker’s secure gateway, so text me the year and model — I confirm before I drive over whether it can be done on-site.

Yes. Older Opels mostly use a transponder key (chip in the head) and sit at the floor for a spare. GM-era Opels need the car’s security code to add a key — the Opel Car Pass has it; if it’s lost, on many models I can still retrieve it on-site. Vectra, Omega, Tigra, Meriva, Agila, Combo — text me the year and model and I’ll confirm the key and the quote.

Three usual causes. First, the new battery is in upside down or is a weak off-brand — re-seat it the same way the old one sat and try a fresh name-brand cell. Second, the remote lost its sync or the board is damaged (water, a drop, or a cracked flip-key case letting dirt in) — that needs reprogramming or a new remote. Third, it was never the key — it’s a receiver or wiring issue on the car. I can tell which it is on-site and fix the programming side the same visit. Text me the year/model and what happened right before it quit.

Yes — that’s the all-keys-lost (AKL) job. On an Opel I first confirm whether you’re on an older transponder key, a flip key or a keyless key, and whether it’s a GM-era or Stellantis-era car, since that sets the part and the time. I cut a fresh blade and program a new key into your Opel’s immobilizer right at your vehicle in Tenerife, no tow to the dealer. Before I start I verify ownership — photo ID matched to your registration or proof of insurance in your name — and if the documents are locked in the car, I run the lockout first so you can pull them.