Trust in original-equipment
quality: Bosch ignition coils
Quality pays off
Rely on Bosch ignition coils
Bosch is the only supplier in the world providing its partners with the complete range of all ignition
components from a single source. It is no coincidence that Bosch stands for high quality, comprehensive expertise, state-of-the-art technology and pioneering developments.
The cornerstone of the Bosch competence
Advantages at a glance: Bosch ignition coils
In the early days of automobile history, ignition was “the
ff Comprehensive product range
problem of problems,” as Carl Benz, who played a key
ff Original-equipment parts
role in the development of the gasoline engine, stated at
ff 100 % self-developed by Bosch
that time. That is until the Bosch company found the
ff Geared to the vehicle manufacturers’ specifications
solution. In 1902, a groundbreaking ignition system, the
for improved engine performance
Bosch high-voltage magneto, was patented. With the
ff Ignition voltage as required
simultaneous development of the Bosch spark plug, it
ff Long spark duration
paved the way for over a 111 years of Bosch ignition-
ff High dielectric strength
system expertise – which Bosch continues to broaden
ff High temperature and vibration resistance
and deepen even today.
ff Reduced fuel consumption and less harmful
emissions
ff Long service life
Improved driving dynamics and environmental sustainability
convince all leading car manufacturers.
Among them are:
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Alfa Romeo
Citroën
Mercedes-Benz
SEAT
Aston Martin
Ferrari
Nissan
Škoda
Audi
Fiat
Opel
Smart
Bentley
Ford
Peugeot
Toyota
BMW
Jaguar
Porsche
Volkswagen
Bugatti
Lancia
Renault
Chrysler
Land Rover
Saab
Satisfied customers through
innovative technology in OE quality
New sales potential with ignition coils and ignition
Simply efficient: the ignition coil’s job
components from the original system supplier
ff Supplying the spark-plug electrodes with the re-
Characteristics and features convincing your customers
ff Transforming the battery voltage (12 volts) to a volt-
quired ignition voltage
as well:
age reaching from 15,000 to more than 30,000 volts
ff Comprehensive and complete range: the right
ff Keeping up the spark until the air/fuel mixture ignites
ignition coil for any application
ff Availability guarantee: Ignition coils for vehicles of
Two circuits, a magnetic field and a spark
different ages
ff Opening the ignition coil’s primary circuit a high-
ff High performance combined with high functionality
ff High reliability and long service life
voltage pulse is generated at the secondary circuit
ff This high voltage is transferred to the spark plug –
ff Good cold-start performance
either directly or by means of ignition leads
ff Corrosion-resistant connections
ff A spark arising between the electrodes of the spark
ff Top manufacturing quality
plug ignites the air/fuel mixture
ff Well-matched system components from a single
ff This explosion moves down the piston and thus
source: from ignition coils to ignition leads and spark
starts the engine
plugs – including ignition distributors for older
vehicles and ignition modules.
Our tip for workshop professionals
Beware of counterfeits: Only genuine Bosch parts work
properly and ensure optimum performance of the
engine combined with low emission values – and there
will be no secondary failures concerning e.g. the
catalytic converter, the lambda sensor or the ECU.
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From classic to state-of-the-art
The right ignition coil for any application
Direct and safe: Single-spark ignition coil
Compact ignition coil (upper left image)
ff One coil for each spark plug
ff Independent high-voltage source for each cylinder
2
1
ff No ignition leads required, since the ignition coil is
3 4
mounted directly onto the spark plugs
ff Advantage: The lack of high-voltage cables (ignition
leads) reduces the potential for engine misfire.
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Types of single-spark ignition coils
6
5
There are two types of single-spark ignition coils:
pencil and compact ignition coils.
Pencil ignition coil(upper right image)
ff Compact ignition coils (upper left image)
1
2
3
7
6
5
4
The high-voltage transformer is in the coil head.
ff Pencil ignition coils (upper right image)
The high-voltage transformer is in the cylindrical coil
body.
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Did you know?
Since Bosch invented the magneto ignition system in the
early 20th century, the system also prevailed in motorsports. An Austro-Hungarian race driver, whose daughter
was the name giver of an important German motor-vehicle
manufacturer relied on the Bosch magneto ignition right
from the start. Up to the present day, Bosch ignition
components are successfully used in different motorsport
series and diciplines.
Ignition-coil components
Compact ignition coil:
Pencil ignition coil:
2 Primary winding
1 Spark plug cap
(silicone rubber)
2 Secondary winding
3 Silicone housing
3 Primary winding
4 Plug
4 Plug
5 Secondary winding
5 Core
6 Secondary coil body
6 Interference-suppression
7 Core
8 Spark-plug contact
resistor
7 Spark plug contact (spring)
4
1
Primary coil body
One for all: multi-spark ignition coil
Multi-spark ignition coil (upper left image)
ff Ignition voltage for several spark plugs.
ff Distribution of the voltage to the spark plugs by
6
7
ignition leads.
ff Advantage: extremely robust and reliable design
5
All-inclusive: cassette ignition coil
ff Just one ignition coil for several spark plugs
ff Some models with integrated ignition module
8
ff No ignition leads required, since the ignition coil is
mounted directly onto the spark plugs
ff Advantages: Reduced risk of failure or defects, easy
to replace if required
4
9
3
Still going strong: asphalt ignition coil
ff Contact-controlled single-spark ignition coil
ff Current flowing through the coil is switched on and
2
off by a contact in the distributor.
ff Advantage: the right spare part for classic vehicles
1
with well-known high Bosch quality
Ignition-coil components
Spare parts for classic and vintage cars
Multi-spark ignition coil:
Talking about classic and vintage cars, Bosch Automotive
Tradition just the right contact.
Its classic/vintage-car range includes:
ff Spare parts in OE quality
ff Information and know-how
ff Emotions for fans of classic cars
ff Diverse services
ff Bosch Classic Car Service network
1 Housing
6 High voltage pin
2 Inner core
7 Outer core
3 Primary winding (wire)
8 Secondary wire
4 Primary coil body
9 Secondary coil body
5 High voltage out
www.bosch-automotive-tradition.com
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The right choice: original coils by Bosch
Counterfeits can be hazardous
High quality for
satisfied customers:
genuinely Bosch
ff Ample ignition voltage
at any time
ff Top manufacturing
quality
ff Good cold-start performance
ff High-quality insulation materials
ff High dielectric
strength
ff Precise and corrosion-resistant connections
ff Long service life
Plagiarism: counterfeits with dire consequences
Counterfeits are often badly designed
Unfortunately, there are pirates on the market. They
They can run hot and can even catch fire. In addition,
threaten not only honest companies, but also safety.
cheap copies can deliver excessive voltage to the con-
Cheap copies can have dire consequences. From the
trol unit thus destroying it.
outside, they are often very hard to distinguish from
originals, but a look inside will reveal serious defects.
Low-quality ignition coils can result in:
Quality features of Bosch ignition coils:
ff Uneven engine running with misses and misfires
ff High performance, high functionality
ff Considerable drop in performance
ff Long service life
ff Increased fuel consumption
ff Reliability and freedom from defects
ff Danger to lambda sensor and catalytic converter
ff Compliance with all legal requirements and safety
ff Excessive exhaust emissions
ff Damage to the engine control unit (ECU)
standards
ff Top manufacturing quality
ff Environmental compatibility
A look at the
technology
Excellent quality in
the Bosch ignition coil
(right) with interference-suppression
winding on the coil
body. The counterfeit
(left) shows contact
problems
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A clear difference
In case of the genuine
Bosch coil (right), the
electrical contacts are
clean and secure.
In case of the counterfeit (left) they are
poorly soldered and
dangerous.
Perfection from a single source
Bosch ignition components
Ignition-coil technology – progress made by Bosch
Bosch ignition modules setting standards
State-of-the-art plastic ignition coils feature both a high
Many vehicle manufacturers trust Bosch – for good rea-
dielectric strength and a high temperature and vibration
sons. High reliability and the fact of being 100 percent
resistance. In future, Bosch will continue to break new
geared to Bosch ignition systems are convincing argu-
grounds regarding ignition systems. For instance, with
ments. The product range in Europe comprises some
new pencil ignition coils with primary-current control
250 types and is constantly updated and expanded –
and diagnostic function.
also for Asian vehicles.
Always the right connection: ignition leads
The driving force: Bosch spark plugs
Bosch offers a wide range of ignition leads well-matched
The comprehensive Bosch range of spark plugs includes
to the vehicle manufacturers’ specifications.
the right one for practically any application: from lawn
mowers to SUVs and even to industrial applications.
Two product lines featuring a market coverage of 92 %
are available for your workshop:
Why Bosch? Your benefits at a glance:
ff Silicone-Copper
ff Only supplier offering all ignition components
for vehicles with copper-core ignition leads
ff Silicone-Power
for vehicles with resistance ignition leads
ff Comprehensive range in original-equipment quality
ff High market coverage
ff Leading innovator: constant further development
Our tip for workshop professionals
The Bosch ESI[tronic] diagnostic software
recognizes Bosch gasoline injection components –
within almost any vehicle. It provides guidance with
detailed disassembly and assembly instructions.
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What drives you, drives us.
Technology from Bosch is used in practically every vehicle in the world.
For us, the focus is on people and helping them to stay mobile.
We have been dedicated to people for more than 125 years with our
pioneering spirit, research, production and expertise.
Our dedication is an unwaivering commitment to providing them
with a unique combination of parts, diagnostics, workshop equipment
and services:
Bosch products and services
 Diagnostics
 state-of-the-art solutions for efficient vehicle repairs
 Diesel systems
 innovative workshop equipment and software – also available on
favorable lease terms
 Gasoline systems
 Brake systems
 the world’s largest range of new and remanufactured spare parts
 Spark plugs
 fast, reliable delivery service
 Energy systems
 expert customer care via our hotline
 Batteries
 extensive range of training courses
 Filters
 specific sales and marketing support
 Wiper systems
 plus many other services
 Light technology
 Comfort electronics
 Hybrid/e-mobility
 Technical hotline
 Knowledge database
 Service training
NEW: Ignition-coil catalog 2015
Look forward to the new comprehensive and informative
ignition-coil catalog 2015. Available soon.
Subject to technical and program changes.
 Workshop concepts
You address for genuine Bosch quality:
AA/MKG F 026 P03 9xx /201504
Bosch Electronic Repair Service
For additional information visit:
www.bosch.com
Fair repair: repairs in line with the
market value
Fast and reliable: most work completed
within 48 hours
Quality remains top priority: Bosch is
committed to this as a globally leading
original-equiment manufacturer
Additional information at
www.bosch-repair-service.com