Table of Contents > Electric drive systems > Electric drive motor > Leakage test of electric drive motor, rear motor

VW ID.4 Electric rear-wheel and all-wheel drive ➜ Leakage test of electric drive motor, rear motor

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  
227  
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-.  
228  
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  
229  
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  
231  
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  
232  
Rep. gr.93 - Electric drive systems  

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