AMPTech X User manual

AUTOMATIC FRUNK
MODEL X
INSTALLATION GUIDE
V. MX FNK20-MKIV
About this guide 3

Table of contents
2
Specifications 4
Technical data of the lifting arms 4
Technical data of the engine for automatic frunking 4
Preparations 5
List of tools needed for the installation 5
List about the scope of delivery 6
Installation guide 7
Remove cladding 7
Replace lifting arms 8
Modify clamping unit 10
Wiring 13
System test and system settings 17
Checklist 19
Deconstruction 21

3
About this guide
Product
descriptions
All specifications and descriptions of the products in this installation manual
have been verified and tested at the time of writing and are valid for the
respective version mentioned in the manual. We reserve the right to make
modifications and improvements to the products at any time.
Errors and inaccuracies
If you notice any errors or inaccuracies in this installation guide, or if you
notice that some descriptions are not complete, please use the following e-
mail for your feedback: [email protected].
We are open to your recommendations and suggestions and will gladly
accept them at the email
.
Copyright
This document is protected by copyright and is the intellectual property of
AMP Engineering GmbH. The contents of this manual may not be modified,
reproduced or copied in whole or in part without the express written
consent of AMP Engineering GmbH. Likewise, the commercial use of this
manual is prohibited.
Safety instructions
The automatic frunk control was designed to enable convenient and safe
opening and closing of the front cover (frunk). Nevertheless, as such it does
not replace the visual inspection. Therefore, always check that your frunk is
securely closed before starting a journey. In any case, the safety instructions
marked "🚫CAUTION:..." in these instructions must be observed. In case of
disregard of the safety instructions and resulting damages to the AMPTech
components or even vehicle parts, the warranty claim as well as any liability
for damages or consequential damages expires due to own fault (see GTC's
on www.amptech.store/agb/, V. Liability). If you have any questions or
problems with the Frunkautomatic, please contact AMPTech under the
phone number [phone] or the email [email protected].

4
Specifications
Below you will find more detailed information about the supplied components.
Technical data of the lifting arms
Lifting arms
Maximum lift arm length
360 mm
Minimum lifting arm length
112 mm
Highest diameter
32 mm
Maximum operating force
700 N
Operating voltage
12 V DC voltage
Operating current
5 A
Operating temperature
-30° Celsius −85° Celsius
Protection class
Static IP 67, on the move IP 65
Technical data of the engine for automatic frunking
Motor for automatic frunk
Operating voltage
12 V DC voltage
Operating current unloaded
≤1,1 A
Motor speed unloaded
280 - 360 rpm
Locking torque
≥4 Nm
Maximum current
20 A

5
Transmission ratio
26,4
Acoustic emission
≤60 dB
Preparations
To ensure that the installation can be carried out quickly, tools required for
the installation should be provided before starting. The required tools are
listed below.
List of tools needed for the installation
Tool list
Position
Designation
1
Torx T20/T30
2
Needle nose pliers
4
Slotted screwdriver
5
Plastic mounting lever
7
Ratchet/Ratchet
8
Socket wrench set/nut (10mm,
13mm)
9
Cable ties in large and small
10
Adhesive tape
11
Cutting tool
💡Tip
A commercially available toolbox contains many of
the tools you need.

Preparations
6
Please check the scope of delivery of the order before starting the
installation.
List about the scope of delivery
Scope of delivery
Position
Designation
1
2 lifting arms
2
Softclose motor with emergency
release tab
3
Control unit
4
Cable tie
5
Power adapter plug with fuse
6
2 cable harnesses
7
2 adapter plates with ball joints
8
2 screws (hexagon socket)
9
Acoustic signal generator
10
Double-sided adhesive tape (3M)
After checking the scope of delivery and providing the tools, you can
proceed with the installation instructions.

Installation guide
Before proceeding to the removal of the inner lining, it is advisable to expose
storage areas for the parts removed in the course of the installation. In
addition, it is helpful to keep the clamps and screws that are removed
sorted.
Remove cladding
● Remove the four interior trim panels arranged around the front
storage compartment. To do this, pull the panels upwards with a jerk
(Figure 1).
Figure 1: Plastic cladding in the frunk
● Remove the front storage compartment carpet trim by reaching
under the rubber lip and separating the carpet trim from the rubber
lip
● Disconnect the two plugs for the storage compartment lighting and
the plug for the pushbutton. The plugs are locked according to the
barb principle
● Then lift out the carpet lining
● The plastic tray under the fairing is fixed with 20 hexagonal screws
(10mm). Loosen the screws (Figure 2)

Installation guide
8
Figure 2: Screwing of the plastic tray
● Lift out the plastic tray
Replace lifting arms
● Remove the lift arms by levering the locking cotter pin with the
slotted screwdriver and pulling on the respective end of the lift arm
by hand until the lift arm releases at the attachment point (Figure 3)
Figure 3: Loosening the lifting arms
● Loosen the joints at the lower attachment points of the lifting arms
using a socket wrench (13mm) (Figure 4)

Installation guide
9
Figure 4: Lower attachment point
● Use the adapter plates included in the scope of delivery and screw
them to the lower attachment points of the lift arms using the screws
included in the scope of delivery. The adapter plates are marked with
"L" (left) and "R" (right) and refer to the left and right side of the vehicle
in the direction of travel. The arrows on the adapter plates indicate the
corner of the adapter plate that is further up when attached. The
curved part of the adapter plate is guided over the sheet metal edge
marked with the red arrow (Figure 5).
Figure 5: Attaching the adapter plates

Installation guide
10
💡Tip
Loosen one lift arm and attach the new lift arm to
the lower attachment point first. After the second
lift arm has been loosened, press both lift arms
against the joint at the upper attachment point so
that the lift arms engage. A second person should
be used to replace the lifting arms.
● The lifting arms for the automatic frunk are pressed against the ball
of the ball joint with the locking split pin until they engage. A "click"
sound is heard when they engage. The front hood must be held in
position for this if necessary.
● Test with both hands whether the front cover can be moved without
any problems
Modify clamping unit
● Loosen the 7 hex head screws (10mm, hex) that secure the plastic
cover above the Tesla emblem (Figure 6)
Figure 6: Screwing of the front plastic cover
● Loosen the two pin clips at the ends of the plastic cover. These are
located underneath the plastic cover (Figure 7)

Installation guide
11
Figure 7: Pin clamps
● Carefully remove the front plastic cover by hand
● Disconnect the plug on the left side of the clamping unit in the
direction of travel. To do this, hold down the safety catch and pull out
the plug at the same time (Figure 8)
● Remove the spring on the clamping unit (Figure 8)
● Remove the screw on the left side of the clamping unit in the direction
of travel (10mm, hexagonal) (Figure 8)
Figure 8: Modification of the lock unit
● There is a hooking device at the end of the motor unit supplied. Hook
the L-shaped plate and fasten the screw you just loosened (Figure 9)
● Press the oblong hole of the plate on the bowden cable head onto the
lower attachment point of the spring
● Hook the spring included in the scope of delivery onto both
attachment points

Installation guide
12
● There is a nut and locknut at the motor end of the Bowden cable.
Tighten these two nuts so that no coils are visible at the end of the
motor.
● There is also a nut and a lock nut at the bowden cable head end.
Tighten the nuts so that 4 turns are visible
Figure 9: Attaching the hook-in device
💡Tip
If the motor does not close the front cover, you can
reduce the number of visible turns at the end of
the Bowden cable head.
● The modified lock unit finally looks as in Figure 10
Figure 10: Modified lock unit

Installation guide
13
● Connect the brown colored plug from the main harness to the
softclose motor
● Thread the bowden cable of the motor unit to the left side of the front
trunk in the direction of travel and attach the motor to a flat surface
with 3M double-sided tape
💡Tip
An aluminum butyl strip underneath the 3M
adhesive tape and another strip around the
softclose motor can be used for noise insulation
🚫ATTENTION
Make sure that the Bowden cable is not bent too
much.
● Guide the emergency bowden cable tab (yellow-colored tab) to the
front left area of the frunk. There are two red-colored tabs that are
used for emergency unlocking of the frunk. Fasten the emergency
bowden cable to one of the red-colored tabs with cable ties.
Wiring
● Connect the black-colored Y-connector of the signal harness to the
connector disconnected from the clamping unit and to the
connection of the lock signal on the clamping unit (Figure 11)
Figure 11: Signal wiring harness

Installation guide
14
● Two cables lead from the catch hook of the clamping unit to its motor.
Follow the cable and disconnect the motor plug. The motor connector
is located near the red-colored emergency release tabs of the frunk.
Connect the plug to the blue-black Y-connector of the cable harness.
Connect the other end of the Y connector to the connector on the
motor.
Figure 12: Motor connector
💡Tip
Make sure that the cables are neatly routed.
● Connect the connectors of the lifting arms to the mating connectors
of the main harness
● Connect the free connector of the clamping unit harness to the
matching mating connector of the main harness
● The voltage should be tapped directly from the battery. To do this, pull
the filter forward so that it detaches from the air inlet behind it
● Remove the red-colored cover of the positive terminal on the battery
and attach the forked cable lug of the power adapter cable (short Y-
cable with fuse) under the nut on the positive terminal (Figure 13)

Installation guide
15
Abbildung 13: Stromversorgung
🚫ATTENTION
Be careful not to cause a short circuit (e.g. by tools
or other current-conducting materials)!
● The ground is tapped from the negative terminal of the battery using
the free forked cable lug on the main harness
● To do this, loosen the nut (10 mm) on the negative terminal and place
the clamp under the nut. Tighten the nut
● Disconnect the white-colored plug on the power adapter cable and
insert the flat plug sleeve on the main harness into the white-colored
plug. Check that the flat plug sleeve is firmly locked in place by pulling
on the cable
● Reconnect the mating part of the white colored plug to the power
adapter cable
● Connect the acoustic signal generator to the small white colored
connector of the main harness
● Connect the main plug to the control unit and turn the locking latch
to the last locking position
● The LED on the control unit should now flash and a signal tone sounds
● One white-colored and one black-colored plug remain unused. These
are masked with insulating tape
● Reattach the red cover of the positive terminal to the battery
● Reconnect the filter to the air inlet c

Installation guide
16
● Connect the pushbutton and the cable that you previously
disconnected from the pushbutton to the free Y-connector
💡Tip
You can glue a piece of alubutyl over the acoustic
signal generator to reduce noise.
Before you start dismantling the removed components, you should first
initialize the system and perform a system test. If you wish, you can also
adjust the extension height and speed of the front cover. The instructions
for the system test and the system settings can be found in the chapters of
the same name in these installation instructions.

System test and system settings
Before you start dismantling, a function check with subsequent system
initialization should be performed. For the function check, manually lock the
lock on the locking unit using a plastic mounting lever or a screwdriver.
Then connect the push button plug or use your keyfob to unlock the lock.
The function check is completed.
To initialise the system, keep the button on the control unit pressed until a
signal tone sounds. The system is now initialised. You can now close and
open your front hood via the button, the multifunction display, the Tesla Key
Fob, or using the Tesla app.
The possible settings that can be made with the Frunk Automatic are
described below.
● Height settings: Manually position the front hood at the desired
height and then press and hold the button on the control unit until a
continuous signal tone sounds. This sounds after approx. 5 seconds.
The signal tone indicates that the set height has been saved. Perform
a system test by pressing the button once so that the front hood
closes automatically and open the front hood using the multifunction
display or the Tesla app.
● Speed settings: Open the front cover. You can access the speed
settings by pressing and holding the button on the control unit. First,
a long signal tone sounds and then two short signal tones in
succession. When you release the button, the front hood closes at the
lowest speed setting. In total, you can choose between five speed
levels. The number of signal tones that sound one after the other
indicates the speed level at which the front hood closes.
speed level you are at. Do not release the button until the desired
speed level is reached.
If the front hood does not close, you can reduce the number of visible
windings. Decreasing the number of windings results in a longer
tightening of the front hood. Check

System test and system settings
18
also whether the closing lug on the front hood meets the lock during
closing. The clamping unit can be adjusted horizontally so that the
closing lug hits the lock vertically. In addition, the position of the front
hood latch can be checked and, if necessary, adjusted accordingly by
means of spacers.

Checklist
The following checklist will help you to check all the steps again in a quick
run-through and to improve them if necessary.
Assembly of the components:
● Soft Close motor and control unit are securely fastened with 3M
adhesive tape and, if necessary, cable ties
● An aluminium butyl strip is attached below the 3M adhesive strip on
the Softclose motor
● The soft close motor is wrapped with alubutyl
● The adapter plates of the lifting arms are screwed tightly
● The lifting arms are snapped in firmly and correctly
● The spring and the hooking device are firmly attached to the lock
● The screw on the lock is screwed in
● The hooking device is mounted in such a way that when locking is
referred to the Bowden cable
● The nut and locknut on the soft close motor are tightened and no coils
are visible
● The nut and locknut at the end of the Bowden cable are tightened
and 4 coils can be seen
● The red colored cover of the positive terminal is attached
● The two fuse clamps are attached to the ends of the lower plastic trim
in the front area
● The 7 hexagonal bolts are screwed in on the upper plastic covering
● The plastic tray is fixed in the front interior with 20 hexagonal screws
● The inner lining of the plastic tub is attached
● The 4 plastic covers around the front trunk are attached
● The rubber lip on the plastic tray lies firmly on the edge of the tray
Wiring:

Checkliste
20
Excess cable lengths and exposed cables are tied into cable bundles with
cable ties and attached to the sides (preferably OEM cables) of the front
trunk
● The plugs of the clamping unit motor and the signal of the clamping
unit are connected
● The plugs of the lifting arms are connected to the plugs of the main
wiring harness
● The forked cable lugs of the power supply are fixed under the nut on
the positive and negative pole
● The flat plug sleeve of the ground cable is locked into the white
colored plug of the power adapter cable
● The acoustic signal generator is connected, insulated with alubutyl
and fixed with 3m adhesive tape
● The unused white colored and black colored plug is isolated
● The terminals of the power supply are fixed
● The flat plug sleeve is firmly inserted in the white colored plug
● A Y-connector leads to the motor of the clamping unit and to the
signal connector on the clamping unit.
● The connectors of the LEDs are connected
● The clamping unit wiring harness is connected to the main wiring
harness
● The main wiring harness is connected to the control unit and the
safety latch is locked in place