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Bosch Automotive Aftermarket 2008 | 2009
A4 | Ignition and gasoline-injection systems from Bosch
Ignition and gasoline-injection systems from Bosch
More than a century of system expertise
L-Jetronic components
KE-Jetronic components
Motronic components
Renowned vehicle manufacturers rely on Bosch as original equip-
ment supplier and thus form the basis for a fruitful replacement
parts business.
In addition to the full range of more than 10,000 items for gasoline-
injection systems, Bosch also supplies the aftermarket and work-
shop sector with the appropriate replacement and wear parts.
1902 Delivery of the first high-voltage magneto and the first spark
plug
1910 Separation of ignition distributor and high-voltage source
1925 Presentation of battery-ignition system by Robert Bosch
GmbH
1951 Presentation of Bosch gasoline-injection system at the
Frankfurt Motor Show
1967 First emission legislation in the USA
Introduction of the first electronic injection system:
The D-Jetronic controlled by intake-manifold pressure.
1973 Energy crisis – fuel consumption becomes the focus of
development efforts
Market launch of the L-Jetronic with air-flow sensor and the
K-Jetronic with mechanical-hydraulic control – this was also
an air-flow sensing system.
1976 Bosch invents the Lambda sensor, thus paving the way for the
closed-loop-controlled catalytic converter.
1979 Motronic market launch
The unique feature of this system was the digital processing
of a wide range of engine functions. It combines the
L-Jetronic principle with electronic map-controlled ignition.
The first microprocessor to be fitted in a motor vehicle.
1981 LH-Jetronic market launch
Instead of a flap-type air-flow sensor, the basic L-Jetronic
system was equipped with a hot-wire air-mass meter and
marketed for the first time as LH-Jetronic.