set in
normal use.
A the oil used onEEmany aftermarket filters
uuA
- Contamination of the MAF (Mass Airflow Flow) sensor
oottfrom
Preparation:
was found and this will likely impact the reliability and accuracy of the MAF sensor
readings over time.
FF recharged
Before starting the
time ensure that the system is correctly
with suitable
B1
B1engine for the first
1
1
a
a

44 fromamount
- Trace oil gas
buildand
up that
on the
an aftermarket
air filter
maybeen
impact
emissions.
99


refrigerant
theMAF
correct
of refrigerant
oil has
added.






- Potential risk of MAF sensor reliability.







1.
Start the risk
engine
but DO NOT
allow the issues,
engine speed
to rise
above idle.
GMAF
- Potential
of emissions
compliance
anyG
or fuelling
change could impact IUPRM, if
2. diagnostics
Turn on theare
air conditioning
system,
(set
temperature
setting
to maximum cold).
not completed as required.
3. Ensure the engine speed does not rise above idle for a minimum of TWO minutes.
Major
Major
revisions
revisions
include:
include: performance and carry out any leak detection/system checks as per normal
4.
Monitor
airofconditioning
In
the
event
the
actual
reading
being
this can
impact
on many
A.
A.
New
New
radiator
radiator
with
with
the
the MAF
engine
engine
coolant
coolant
fans
fansincorrect,
repositioned
repositioned
to
to the
the
top
top (fan
(fan
blade
bladefunctions:
orientation
orientation altered
altered to
to
before refitting any
ancillary
components
back
onto
the vehicle.
- Potential
MAF, MAF
MAP
orof
MAF
to
TPS correlation
issues, fault code & MIL events.
draw
draw air
airof
through
through
from
fromto
the
the
base
base
of
the
the coolant
coolant
pack).
pack).
B.
Heater
Heater
water
water
circuit
circuit simplified
simplified
and
and
is
is now
now
the
thecirculate
same
same
as
as
the
the Evora
Evora
400
400
and
and later
later
Exige
Exige
models with
with
-B.MAF
errors
impacting
engine
performance,
through
incorrect
fuelling
& ignition.
Carrying
out
this
procedure
allows
the oil
to
fully
around
the refrigerant
circuit
and models
compressor
the
the
hot
hot
water
water
feed
feed
to
to
the
the
heater
heater
unit
unit
being
being
supplied
supplied
from
from
a
a
bleed-off
bleed-off
pipe
pipe
from
from
the
the
engine
engine
to
to
radiator
radiator
- MAF errors
to false triggering
of fault
system
beforeleading
the compressor
is put under
any codes.
loading’
main
main coolant
coolant pipe.
pipe. The
The heater
heater coolant
coolant feed
feed pipe
pipe is
is now
now deleted
deleted from
from the
the right
right hand
hand side
side of
of the
the side
side
MAF
is alsorail,
theonly
mainthe
input
used
in (B1),
the
calculation
of torque. In the event of torque being in error, any
chassis
chassis
rail,
only
the
return
return
pipe
pipe
(B1),
is
is
still
still
used.
used.
Item 2: Receiver-Drier Renewal
function
thatof
torque
will also
be in
error,
such
asconnection
automatic fittings.
transmission
learns because:
C.
C. Fitment
Fitment
ofuses
Exige
Exige
condenser
condenser
using
using
PAD
PAD
type
pipe
pipe
connection
fittings.includeshift
Confirming
the
importance
of renewing
the type
receiver-drier
to specifically
reference to the air conD.
D.Automatic
Fitment
Fitment
of
of
Evora
Evora
receiver
receiver
drier
drier
with
with
PAD
PAD
type
type
pipe
pipe
connection
connection
fittings.
fittings.
-ditioning
shift
learns
are
in
torque
bands
between
2
and
209
Nm.
compressor because of rapid discharge of the air conditioning system caused for example by
E.
Revised
service
service
ports
within
the
the
right
right
hand
hand
rear
rear wheelarch
wheelarch
area
area
(again
using
PAD
PAD
type
connections).
connections).
-E.IfRevised
the transmission
seeswithin
a steady
MAF
reading
that
equates
to (again
66,
85,using
126,starvation.
167 type
or
209
Nm it may
accident
damage
orports
because
the
compressor
has
suffered
internal
damage/oil
F.
F.schedule
New
New air
air aconditioning
conditioning
bodyside
bodyside
pipes
pipes
with
with
PAD
PAD
connection
connection
fittings
fittings
replacing
replacing
the
the
original
original
union
nut
nut
clutch or brake learn, if however this is not actually 66, 85, 126, 167 or 209 Nm union
(due to
a
type
type
fittings.
fittings.
MAF error), the learn for that torque band will be incorrect and shift quality will be adversely
affected.
Continued...
G.
G. Revision
Revision to
to coolant
coolant circuit/hoses
circuit/hoses in
in engine
engine bay
bay for
for updated
updated water
water heater
heater return
return circuit.
circuit.

Continued..
Continued..
Continued..

42
a21

11
31
72
2 01.05.2020
2Date:
Date:
20.06.2019
82

2

32

42
Bulletin Number
2020/03
04
Continued Page 2

4 Toyota
Model: All Model:
2ZR
Powertrain
Elise Models
All Lotus
Vehicles
Built from
May 2019 Onwards
Item 3: Updated Pre-Delivery Inspection
Sheet

42

12

Number: 2020/01
2019/09
Number:

43

Release
a new PDI sheet (LSL345L) listing9 a procedure for confirming (and reporting as necessary)
42 filesofshould
Copy
be maintained by:
the air conditioning evaporator core temperature.

1

5
After
Storage – Initial Engine Start C
REASON:
4
8
If
the vehicle
has
been
stored
(and/or
started
for a& period
6 months
ofand
more),
the reair
15several