I have found several battery kill switches on the market for cars. I need to be able to turn the engine off remotely while working under the hood/bonnet.

Can I turn the engine off remotely using an installed battery kill switch like this?


https://www.amazon.com/Csyibeielec-Kill-Switch-Car-Disconnect/dp/B0DQTGXPWG/ref=sr_1_7_sspa?dib=eyJ2IjoiMSJ9.vxDyBgd2PeFWd42dYDHoRCUw953OOV6Bmq31ELOABLR9r389O4Nq1Uz0dc1slLL4cf_ olwv6fojojN7GcXjvu9s-jEbqi32XjHRjrDGjrp-0AApVcA3Bnr3XNtiFyVtMEqR1inBuzYAkGvBj9sN1Ci3eVWPge2YL1ZFV5TooztkC3jWafxSRfP4noMmd7G2gEdMtvnoG5_sEgYD H2TDVjZVn5dXH6M4JaTOuDwuEkiM.J6sLt5RSV7q_jHjMs6mUOcHgkRQQaLMlTPjeWTAArLs&dib_tag=se&keywords=ignition%2Bkill%2Bswitch%2Bfor%2Bcar&qid=1743775669&sr=8-7-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9tdGY&th=1


or do I need something more like this:


https://www.amazon.com/Spy-Spot-Remotely-Real-Time-Subscription/dp/B008YHR04U/ref=sr_1_6?dib=eyJ2IjoiMSJ9.vxDyBgd2PeFWd42dYDHoRCUw953OOV6Bmq31ELOABLR9r389O4Nq1Uz0dc1slLL4cf_olwv6 fojojN7GcXjvu9s-jEbqi32XjHRjrDGjrp-0AApVcA3Bnr3XNtiFyVtMEqR1inBuzYAkGvBj9sN1Ci3eVWPge2YL1ZFV5TooztkC3jWafxSRfP4noMmd7G2gEdMtvnoG5_sEgYD H2TDVjZVn5dXH6M4JaTOuDwuEkiM.J6sLt5RSV7q_jHjMs6mUOcHgkRQQaLMlTPjeWTAArLs&dib_tag=se&keywords=ignition+kill+switch+for+car&qid=1743775618&sr=8-6

this also looked interesting:


https://performancedistributors.com/product/kill-switch/?srsltid=AfmBOooR4pANP5LCZ6DEspix0_F-eisN_x6Xkx1XBXbg3ZIn3RuXKxwG

None of those will kill your engine.

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92 e300d2.5t
01 e320
05 cdi
85 chev c10

If you post what type of car you have we may be able to better assist you.

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1990 190E 3.0L

sorry, it is a 2003 Lincoln Town Car.

Wire up a simple 12v rocker switch to the fuel pump circuit/fuse, job done. Hacky, but it'll work. If you need something fancier, a remote start/stop system is probably a much better way to do it.

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TC
Current stable:
- 2004 Mazda RALLYWANKEL
- 2007 Saturn sky redline
- 2004 Explorer...under surgery.

Past: 135i, GTI, 300E, 300SD, 300SD, Stealth