Mid City Engineering SKSNG231D4 Plug and Play Remote Starter ⒺⒾⓈ 🔑

$1,449.99 CAD

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SKSNG231D4

Regular price $1,449.99 CAD
Sale price $1,449.99 CAD Regular price
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ⒺⒾⓈ 🔑 This solution requires EIS modification and a key sacrifice

Mercedes-Benz vehicles use an Electronic Ignition Switch, and this solution needs that module physically modified before the remote starter will work.

This is not a job to attempt yourself. The modification is delicate, and getting it wrong can brick the vehicle — the car will not start, and recovering from that is expensive. For that reason this work is handled by a specialist.

Add our EIS jumper installation service to your order and we'll arrange it.

A key sacrifice is also required. One of your working keys stays permanently inside the vehicle for the life of the installation, so if you only have two keys, budget for cutting a spare.

Read more about our product notes →



Expert Verdict (2026) - Why Buy?

This is the Mid City Engineering SKSNG231D4 remote starter for the Mercedes-Benz SL-Class.

Fits the 2013 to 2020 SL-Class with push-button start. See the fitment table below to confirm your exact year.

What it does

  • Starts from your factory key fob out of the box using the 3xLock method, so there's nothing extra to carry.
  • Automatically turns on the OEM heated seats, cooled seats and rear defroster based on outside temperature thresholds you set.
  • Programmable from the steering wheel controls: run time, temperature thresholds, light flashes, timer start.
  • Works with Compustar DRONE smartphone control for app control and two-way alarm notifications.
  • Integrates with the factory wiring rather than cutting into it, so your vehicle warranty stays intact.

Upgrade options

Add the Compustar CMX and the FT-ALARMIT kit to turn this into a full alarm and remote start system. The CMX is also what you need if you want to add Compustar key fob kits for longer range than the factory fob gives you.

About the EIS modification

This system needs the vehicle's Electronic Ignition Switch physically modified, and one of your keys permanently sacrificed. The EIS work is delicate enough that we have it done by a specialist rather than attempting it in-house. Add our EIS jumper installation service to your order and we'll handle it.

Specifications

Type of remote starter: OEM key fob, 3xLock start
Remotes included: None. Uses your factory fob, or add a Compustar kit with the CMX
Operating range: Factory key fob range
Model number: SKSNG231D4
Smartphone control: Yes, DRONE Mobile
Manual transmission: No
Diesel compatible: Yes
Bypass module support: RS232 (D2D) and BLADE
Warranty: 4 years

Backed by a 4 year warranty, well beyond what most remote starters carry.


Specifications

Installation Method

-

Transmission Support

-

Car Alarm Capable

-

Designed To Fit:

  • Mercedes-Benz

Warranty

  • 4 Years

What vehicles does this product fit?

Testimonials

  • Exceptionally Helpful

    They were exceptionally helpful despite me going down the DIY route having never installed a remote starter before. There was no T harness kit available for my vehicle which led to a few questions which they thankfully were very helpful with. Mission remote start was successful and I'm super pleased.


    Stephen Anthony
    DIY Client
  • 10 out of 10

    I would recommend Lockdown security 10 out of 10 times. Leo and his team were professional, fast acting and provided excellent service. I am very happy with my remote starter.


    Jay
    Enjoying a warm vehicle!
  • Responsive, Easy to Use

    Have been using Lockdown Security for years. Just ordered the fifth remote starter from them and installed myself. Their website is easy to use and intuitive. They are responsive and more than willing to answer questions for the DIY customers. Would strongly recommend to anyone looking to purchase a remote starter.


    Ayad
    DIY Client
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