Defender won't start? Start at the key.
First decide what happens at the key: click, crank, or nothing. That split points to the smallest useful check before you buy parts.
Defender no-start guide
TraxerQuick answer
Start with the symptom, then the small checks.
Separate what the machine does now before shopping for parts.
- Listen for click, crank, or silence at the key
- Check battery voltage under load and terminal tightness
- Confirm kill switch, brake, shifter, and obvious fuse state
Symptoms to name clearly.
- Dash lights up but nothing moves
- Starter clicks but the engine does not turn
- Engine cranks but will not fire
Check the small causes before buying parts.
- Weak battery or loose terminals
- Starter relay or main fuse issue
- Fuel prime, spark, or safety interlock state
First checks before buying parts.
- Listen for click, crank, or silence at the key
- Check battery voltage under load and terminal tightness
- Confirm kill switch, brake, shifter, and obvious fuse state
Stop when this needs hands-on help.
Stop and get hands-on help if you smell fuel, see melted wiring, feel hot cables, or the machine could move unexpectedly.
Why trust this
Useful checks, not a parts guess.
Use the guide to name the problem. Bring year, trim, hours, photos, and recent work into Traxer when you need the next step.
Human checkedModel page checkedExact year and trim matterOwner guide
Should I buy a battery first?
Not automatically. A battery can be part of the problem, but the click/crank/dead split should guide the first check.
Is this model-specific?
This guide gives general first checks. Add your model in Traxer so the next checks can use the right machine details.
Save the next step
Start my Defender check Continue with this problem.
Keep the symptom, machine details, and next checks together.