
BMW key replacement in Portsmouth
BMW keys are more involved than most, but we handle them on site – from older 1 Series to newer X models with Comfort Access.
How much does a replacement BMW key cost in Portsmouth?
A BMW spare key usually costs £150–£290 when you still have a working key, and replacing a lost BMW key typically costs £200–£450 when every key is gone. The price depends on the key type and immobiliser system. We cut and program BMW keys at your car across Portsmouth & the PO postcode area and confirm a fixed price from your registration first.
Last updated
| Spare key | £150–£290 (average) |
|---|---|
| All keys lost | £200–£450 (average) |
| Response time | around 1 hour |
| Warranty | 12 months on parts and labour |
BMW key systems in plain English
Remote keys
Keys with a chip and remote, linked to the car's security module.
Comfort Access
Keyless entry and start; the car detects the key nearby.
Security modules (CAS, FEM, BDC)
The part of the car that stores key data. New keys are coded to it, sometimes using EEPROM work.
BMW models we work on
- 1 Series
- Common hatchback – remote and smart keys.
- 3 Series
- Popular saloon and estate.
- 5 Series
- Smart keys with Comfort Access.
- X1 & X3
- SUVs with keyless entry.
- M models
- Performance cars handled with extra care.
Other BMW models are covered too – call with your registration.
Recent BMW work

BMW M4
New smart key coded to the car's security module on site, avoiding a dealer wait.
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Ford Transit Custom
New flip key cut and programmed on the driveway – van back at work the same morning.
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Volkswagen Golf
Worn ignition barrel sorted on site – key turns smoothly again, no tow to a garage.
Read the jobBMW key problems we fix
- All keys lost on a Comfort Access car
- Key not recognised after battery change
- Display key and smart key issues
- Spare keys needed for used cars
BMW key FAQs
Beyond BMW: more ways we can help
Get a BMW key quote
Tell us the registration and where the car is – we'll confirm the price before we start.
Portsmouth Car Keys
023 9299 0167Mon–Sun, 8am–10pm
Mobile service – we come to you across Portsmouth & the PO postcode area
Ready to solve your car key problem?
We're on the way. Call us now.
