From diesel bus

to electric bus

Retrofitting for less emissions and more efficiency

Contact us

From diesel bus to electric bus

Retrofitting for less emissions and more efficiency

Contact us
Ein von pepper elektrifizierter Mercedes Benz Citaro C1

Emission-free passenger transport is not only a question of environmental protection but also of economic sense. In addition to cleaner air and less noise, an electric bus also ensures flexibility regarding fossil fuels.

The most sustainable way towards electromobility is undoubtedly retrofitting. Our etrofit kit gives buses with retired diesel engines a second life. We can either supply you with fully retrofitted vehicles or retrofit your existing diesel vehicles for you.

Retrofitting – for a better future.

Why retrofit? Why pepper?



Second Life

CO2 savings


Cheaper than buying a new one

Lower operating and maintenance costs, lowest TCO

Term extension


Fast delivery capability for selected models

Short development cycles

Fast implementation


Standards (e.g. ISO 26262)

TÜV Certification

Criteria catalogue of the Federal Ministry of Transport and Digital Infrastructure

Project sequence

The process phases of the conversion

1. Analysis

Analysis of the vehicles to be converted for technical characteristics, TÜV inspection reports, analysis of subsequent requirements such as route lengths, route profiles, round-trip times, charging points, etc.

2. Planning

Detailed specification in terms of range, battery capacity, drivetrain, air-conditioning, and optional charging concept

3. Conversion

Conversion and commissioning of the vehicle in a partner workshop including TÜV vehicle approval

4. Operation

Support and advice during recommissioning with awareness training for workshop staff and planning of the necessary charging infrastructure

The pepper etrofit kit

Our conversion kit to electric drive includes the following components

Modell des pepper Busses mit transparentem Hintergrund

Modular battery system

Auxiliary units


Charging infrastructure

Vehicle Control Unit

Heating and air conditioning

Telematics unit


Available vehicles

pepper offers retrofittings for the most common city bus models

Citaro C1 045

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Citaro C1 083

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Citaro C2

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Contact us

If you would like to learn more about our retrofit solutions or are already concretely interested, please send us a message via our contact form! We will get back to you as soon as possible.