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DEFA Manuals & User Guides

DEFA is a Norwegian manufacturer specializing in electrical preheating systems, EV charging solutions, and automotive security products tailored for extreme climates.

Tip: include the full model number printed on your DEFA label for the best match.

About DEFA manuals on Manuals.plus

DEFA is a leading global provider of automotive electrical systems, established to ensure vehicle reliability and comfort in demanding conditions. Based in Norway, the company is best known for its WarmUp system, a complete preheating solution that integrates engine heaters, cabin heaters, and battery chargers. This system reduces cold start wear, fuel consumption, and emissions while ensuring a fully charged battery and a warm vehicle interior.

Beyond preheating, DEFA has expanded its portfolio to include advanced electric vehicle (EV) charging stations, such as the DEFA Power and DEFA Power S, which offer smart, efficient, and secure charging for modern EVs. The brand also manufactures security lighting, vehicle tracking systems, and digital trip logs for fleet management. DEFA products are designed with user-friendliness and durability in mind, serving both private car owners and professional automotive workshops.

DEFA manuals

Latest manuals from manuals+ curated for this brand.

DEFA 421821 Engine Preheater System Instruction Manual

DEFA 421821 Engine Preheater System Instruction Manual

September 27, 2025
DEFA 421821 Engine Preheater System Instruction Manual 421821     Find your vehicle in the table in this installation guide. If mounting on your vehicle requires separate mounting kit, mounting…
DEFA 411707 Engine Heater Instructions

DEFA 411707 Engine Heater Instructions

June 23, 2025
411707 FITTING INSTRUCTIONS 230V/550W 411707 Engine Heater http://www.defa.com/vfp/eh/411707.pdf Copyright © 2014 DEFA AS, All rights reserved. Find your vehicle in the table in this installation guide. If mounting on your…
DEFA Power S Charging Station Instruction Manual

DEFA Power S Charging Station Instruction Manual

March 25, 2025
DEFA Power S Charging Station Wall bracket included Charging station with display, integrated cable, built-in 4G, and an MCB for effortless installation. DEFA Power S delivers effortless charging for EV…
DEFA 718681 Electric Centrals User Guide

DEFA 718681 Electric Centrals User Guide

January 21, 2025
El-central Quick guide Scan for other languages https://www.defa.com/content/uploads/Documentation/Chargers-and-inverters/Accessories/Electric-centrals/Manuals/718681_Quick_guide_for_El-central_1in_1out_all.pdf DANGER! Working at live parts may cause severe or fatal injuries Installation Make sure the input cable to the el-central is not…
DEFA El - central 719310: Marine Electrical Central Unit

DEFA El - central 719310: Marine Electrical Central Unit

Product Overview
Detailed information on the DEFA El - central (Item number 719310), a robust, moisture-resistant electrical central unit for marine applications. This document details its features, specifications, installation guidelines, and maintenance…
DEFA Power Quick Installation Guide

DEFA Power Quick Installation Guide

Installation Guide
A concise guide for the installation of the DEFA Power EV charging station, including mounting, wiring, and app setup. Covers product specifications and configuration.
DEFA Power S Laddstation: Specifikationer och Funktioner

DEFA Power S Laddstation: Specifikationer och Funktioner

product overview
Utforska DEFA Power S, en avancerad laddstation för elbilar med display, integrerad kabel, 4G-anslutning och enkel installation. Läs om dess tekniska specifikationer, säkerhetsfunktioner och användningsområden.
DEFA 411570 Engine Heater Installation Guide

DEFA 411570 Engine Heater Installation Guide

Installation Guide
Comprehensive installation guide for the DEFA 411570 engine heater, providing step-by-step instructions, vehicle compatibility, safety warnings, and maintenance tips for optimal performance.
DEFA Engine Heater Installation Guide (Model 411707)

DEFA Engine Heater Installation Guide (Model 411707)

Installation Guide
Comprehensive installation instructions for the DEFA engine heater model 411707 (230V/550W), covering vehicle compatibility, mounting procedures, and safety guidelines in multiple languages.
DEFA 411241 Engine Heater Installation Manual

DEFA 411241 Engine Heater Installation Manual

Installation Guide
Comprehensive installation guide for the DEFA 411241 engine heater. This manual provides step-by-step instructions, vehicle compatibility tables, and important safety warnings in multiple languages, primarily English.
DEFA 413737 Engine Heater Installation Guide

DEFA 413737 Engine Heater Installation Guide

Installation Guide
Comprehensive installation manual for the DEFA 413737 engine heater, providing step-by-step instructions and vehicle compatibility information for Toyota Hilux models.

DEFA manuals from online retailers

Defa ChargerKit 1205 Flex Battery Charger User Manual

Defa ChargerKit 1205 Flex Battery Charger User Manual

450034 • December 14, 2025
This manual provides detailed instructions for the Defa ChargerKit 1205 Flex Battery Charger (Model 450034), covering installation, operation, maintenance, troubleshooting, and technical specifications to ensure safe and efficient…
DEFA 701785 SmartCharge 8 | User Manual

DEFA 701785 SmartCharge 8 | User Manual

DEFA SmartCharge 8 • August 3, 2025
The most user-friendly battery charger in the world. With the DEFA SmartCharge 8, you get an easy-to-use charger, whose operation couldn't be simpler. You only need to press…

DEFA support FAQ

Common questions about manuals, registration, and support for this brand.

  • Can I install DEFA engine heaters myself?

    No. Products installed in the engine compartment should be installed by an authorized workshop to ensure safety, proper functioning, and warranty coverage.

  • What is the recommended usage for the DEFA engine heater?

    DEFA defines normal usage as 3 connections for 3 hours per 24 hours, based on 150 user days a year (approx. 5 months). Continuous connection 24/7 requires annual function checks.

  • Can I use the engine heater with interval power timers?

    Using the engine heater in parking areas where power is switched on and off several times per hour is not considered normal use and can reduce the product's lifespan. Claims related to such usage may be declined.

  • What should I do if my vehicle model is not listed in the installation table?

    If your specific vehicle is not listed, scan the QR code on the product packaging or visit the 'Find your heater' section on the DEFA website for the most updated instructions.

  • Does the DEFA Power S charging station come with a cable?

    Yes, the DEFA Power S includes an integrated 6-meter Type 2 charging cable.