ID.4 2021 ➤, ID.3 2020 ➤
Electric rear-wheel drive EIP220 and all-wheel drive EIA200, EIP220 - Edition 11.2021
7
Electric drive motor
7.1
Calibrating three-phase current drive
[VX54-
Calibration of the three-phase current drive -VX54- becomes
necessary if:
♦ the event memory of systems relevant to OBD has been
cleared;
♦ the software for the electric drive control unit -J841- was
updated;
♦ the electric drive control unit -J841- has been renewed;
♦ the power and control electronics for electric drive -JX1- has
been renewed;
♦ the three-phase current drive -VX54- has been renewed.
Calibration is preformed automatically the first time the vehicle
is driven. The power output of the drive motor is restricted until
the motor has been successfully calibrated.
If the calibration is to be carried out manually:
– Carry out function “Calibrate electric drive motor” using
⇒ Vehicle diagnostic tester ⇒ Rep. gr. 00; Access to diagno‐
ses.⇒ Vehicle diagnostic tester
7.2
Leakage test of electric drive motor,
rear motor
Special tools and workshop equipment required
♦ Connect the pressure side of pressure and vacuum pump
-VAS 671 005-
♦ Leakage test kit -VAS 691 005/15-
♦ closure -VAS 691 005/11-2-
♦ distributor -VAS 691 005/1-
♦ pressure sensor -V.A.G 1397B-
♦ sealing device -T10634-
♦ sealing plug -T10607/4-
♦ testing adapter -VAS 691 005/4-
Important
•
The three-phase current drive -VX54- with power and control
electronics for electric drive -JX1- has been removed and is
secured to the engine and gearbox support.
•
The sealant must be allowed to dry for at least 15 minutes
before carrying out the leakage test.
Carry out the steps below one after the other.
Step 1: Leak testing of tools
– Connect the pressure side of pressure and vacuum pump
-VAS 671 005- -D- to distributor -VAS 691 005/1--B-.
7. Electric drive motor
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ID.4 2021 ➤, ID.3 2020 ➤
Electric rear-wheel drive EIP220 and all-wheel drive EIA200, EIP220 - Edition 11.2021
– Connect pressure sensor -V.A.G 1397B- -C- to distributor
-B-.
– Open all shut-off taps -arrows- on distributing mechanism
-B-.
– Connect distributor -B- to adapter -VAS 691 005/15-3- -E-.
– Switch on pressure sensor -C-. Select “mbar” and relative
pressure measurement “rEL”.
– Close shut-off tap -arrow- on adapter -E-.
– Generate a pressure of 1000 mbar using pressure and vac‐
uum pump -D-.
– Observe pressure sensor -C- for approx. 1 minute. The pres‐
sure must not drop.
Note
Due to the pressure sensor’s high accuracy, the displayed pres‐
sure may fluctuate a little.
Step 2: Leak testing of motor and gearbox
– Seal electrical connections on power and control electronics
for electric drive -JX1- with sealing plug -T10607/4--J- and
sealing plug -T10633--K-.
– Fit sealing device -T10634--L- on power and control elec‐
tronics for electric drive -JX1-, as shown in illustration.
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Rep. gr.93 - Electric drive systems
ID.4 2021 ➤, ID.3 2020 ➤
Electric rear-wheel drive EIP220 and all-wheel drive EIA200, EIP220 - Edition 11.2021
– Position sealing disc centrally in front of bleeder valve
-arrow-.
– Screw in spindle -1- by hand.
– Fit closure -VAS 691 005/15-1--F- into the left drive shaft
flange.
– Screw in clamping nut -1- by hand.
– Hook safety cable -2- onto motor.
– Fit closure -VAS 691 005/15-1--G- into the right drive shaft
flange.
– Screw in clamping nut -1- by hand.
– Hook safety cable -2- onto motor.
7. Electric drive motor
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ID.4 2021 ➤, ID.3 2020 ➤
Electric rear-wheel drive EIP220 and all-wheel drive EIA200, EIP220 - Edition 11.2021
– Press in locking catch -arrow- and fit adapter -VAS 691
005/15-3--E- onto the gearbox breather.
– Release the locking catch -arrow- and pull to check it has
locked.
– Using a small screwdriver, carefully lever out bleeder valve
-1- -arrow-.
– Fit test adapter -VAS 691 005/15-2--A- to motor so that com‐
pressed air connection -1- is aligned with hole -arrow- for
bleeder valve.
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Rep. gr.93 - Electric drive systems
ID.4 2021 ➤, ID.3 2020 ➤
Electric rear-wheel drive EIP220 and all-wheel drive EIA200, EIP220 - Edition 11.2021
– Screw in knurled screws -2- by hand.
– Turn compressed air connection -1- centrally against hole for
bleeder valve until it is hand-tight.
– Connect distributing mechanism -B- with pressure sensor
-C- and pressure and vacuum pump -D- to adapter -E-.
– Open all shut-off taps -arrows-.
– Switch on pressure sensor -C-. Select “mbar” and relative
pressure measurement “rEL”.
– Generate a pressure of 200 mbar using pressure and vac‐
uum pump -D-.
– When pressure is reached, close shut-off tap -arrow- on dis‐
tributing mechanism -B-.
7. Electric drive motor
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ID.4 2021 ➤, ID.3 2020 ➤
Electric rear-wheel drive EIP220 and all-wheel drive EIA200, EIP220 - Edition 11.2021
– Observe pressure sensor for 5 minutes. The pressure must
not drop by more than 2 mbar. Pressure fluctuations are
normal.
– If the pressure drops by more than 2 mbar locate the leak
using a commercially available leak detection spray.
– If gearbox side is leak-tight, close shut-off tap -arrow- on
adapter -E-.
Note
Pressure in gearbox must not be released. It is needed to leak-
test the motor side.
Checking motor side for leaks:
– Connect distributor -B- with pressure sensor -C- and pres‐
sure and vacuum pump -D- to test adapter -VAS 691
005/15-2- -A-.
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Rep. gr.93 - Electric drive systems
ID.4 2021 ➤, ID.3 2020 ➤
Electric rear-wheel drive EIP220 and all-wheel drive EIA200, EIP220 - Edition 11.2021
– Open all shut-off taps -arrows- on distributing mechanism
-B-.
– Switch on pressure sensor -C-. Select “mbar” and relative
pressure measurement “rEL”.
– Generate a pressure of 200 mbar using pressure and vac‐
uum pump -D-.
– When pressure is reached, close shut-off tap -arrow- on dis‐
tributing mechanism -B-.
– Observe pressure sensor -C- for approx. 5 minutes. The
pressure must not drop by more than 2 mbar. Pressure fluc‐
tuations are normal.
– If the pressure drops by more than 2 mbar locate the leak
using a commercially available leak detection spray.
– Following leakage test, remove pressure and vacuum
pump -D-.
7. Electric drive motor
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ID.4 2021 ➤, ID.3 2020 ➤
Electric rear-wheel drive EIP220 and all-wheel drive EIA200, EIP220 - Edition 11.2021
– First release the pressure on the motor side by opening
shut-off tap -arrow 1-. Then open shut-off tap -arrow 2-.
– Remove all tools.
– Apply thin coat of special lubricant to sealing seat for bleeder
valve on bearing plate -arrow-, and install new bleeder valve
-1-.
Special lubricant ⇒ Electronic parts catalogue (ETKA)
Step 3: Leak testing motor on coolant side
– Seal coolant connection -1- on the underside of the power
and control electronics for electric drive -JX1- with closure
-VAS 691 005/11-2--H-.
– Secure seal with hose clip -arrow-.
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Rep. gr.93 - Electric drive systems
ID.4 2021 ➤, ID.3 2020 ➤
Electric rear-wheel drive EIP220 and all-wheel drive EIA200, EIP220 - Edition 11.2021
– Connect testing adapter -VAS 691 005/4--I- to the coolant
connection -2-.
– Connect distributing mechanism -B- with pressure sensor
-C- and pressure and vacuum pump -D- to testing adapter
-I-.
– Open all shut-off taps -arrows- on distributing mechanism
-B-.
– Generate a pressure of 1000 mbar using pressure and vac‐
uum pump -D-.
– When this pressure has been reached, close shut-off tap
-arrow-.
7. Electric drive motor
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ID.4 2021 ➤, ID.3 2020 ➤
Electric rear-wheel drive EIP220 and all-wheel drive EIA200, EIP220 - Edition 11.2021
– Observe pressure sensor -C- for approx. 5 minutes. The
pressure must not drop by more than 1 mbar. Pressure fluc‐
tuations are normal.
– If the pressure drops by more than 1 mbar locate the leak
using a commercially available leak detection spray.
Important
•
•
If leaks have been located and sealed, repeat leakage test.
If no leakage was detected, remove all tools.
7.3
Assembly overview – electric drive mo‐
tor
7.3.1
Assembly overview – electric drive motor, rear motor
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Rep. gr.93 - Electric drive systems