3 Series E30 325i (M20) SAL
VK-23/Holzenkamp
Baugruppe/Group: 13
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weltweit
all countries
08/1996
Leaded fuel with catalytic-converter vehicles
All models since Model Year 86
Situation:
The open global market allows us to export catalytic-converter vehicles to those markets to
which the BMW Organisation has exclusively exported vehicles without a catalytic converter
or the "cat-prepared" vehicle version due to the exhaust-emissions legislation in force there
or the limited availability of unleaded petrol.
When BMW catalytic-converter vehicles are run on leaded fuel, the following actions
described below are necessary depending on the engine type.
Affected
vehicles:
All vehicles since Model Year 86 with catalytic converter (without special equipment "cat-
prepared") - except compressed-natural-gas-driven (CNG) vehicles
Action:
Conversion of the vehicle from "catalytic-conversion version" to "cat-prepared" or
"Gulf/Tropics" version.
Important! There are two restrictions that must be observed:
1. Compressed-natural-gas-driven vehicles (CNG) are not convertible
Gas-driven vehicles cannot be converted, because there is no "cat-prepared" variant. If
such vehicles are run with leaded fuel without being converted, the DME adapts substitute
values which trigger a fault message for the CNG component, which in turn leads to the
CNG system being deactivated. The vehicle can then no longer be driven on gas.
2. US models can be converted, but only with limitations
a)
US models with the M50 or M52 engine and automatic transmission cannot be
converted.
b)
In the case of the remaining US models (see the list below), it is also necessary to
mount tyres from the same speed category as are fitted to the corresponding ECE
model.
Reason:
When recoding US models for running on leaded fuel, the "cat-prepared" variant for the
ECE or Gulf must be used, because there is no "cat-prepared" variant for the US. This
action clears any speed-governing function that may be coded in the DME , which means
that the vehicle runs faster after conversion without being type-approved or technically set
up for this function.
Since Model Year 90, the top speed of all versions of the following US models is limited:
Limitation 187 km/h (116 mph):
as of 01/94: E36 318i, E36 318is, E36 318ti, E36 Z3 1.9
Limitation 196 km/h (122 mph):
E30 325i, E30 325ix
Limitation 206 km/h (128 mph):
E34 525i, E34 530i, E34 540i, E36 320i, E36 325i, E36 325is, E36 328i, E36 328is, E38
740i, E38 750i, E39 528i, E39 540i;
up to 12/93: E36 318i, E36 318is
Limitation 220 km/h (137 mph):
E36 M3
These US models are also set up for their respective limited top speed:
SI Leaded fuel with catalytic-converter vehicles All models since Model Year 86
BMW AG - TIS
26.01.2013 10:41
Issue status (12/2007) Valid only until next DVD is issued
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