TECHNICAL SERVICE BULLETIN
Doc. ID TSB-26131-02
Model Jesko, CC850

Gearbox Fluid Sensor Update
This document contains two model specific instructions. Before you start the work, make
sure that you use the correct instruction. Refer to the information in the heading on the
pages that follow.

Situation
The gearbox fluid sensor may wear prematurely.

Action
Inspect the sensor and replace if necessary.

© This document remains the property of Koenigsegg Automotive AB. It is provided with the understanding that it contains proprietary information
and its contents must be handled accordingly. It must not be used for purposes other than that for which it is intended or be disclosed to
­unauthorized persons. It must not be reproduced in whole or in part without prior permission in writing from Koenigsegg Automotive AB.

1 [1]

TECHNICAL SERVICE BULLETIN
Doc. ID TSB-26131-02
Model Jesko
Kit
1103792

Gearbox Fluid Sensor Update
This instruction refers to other documents that are necessary to do the procedure.

Situation
The gearbox fluid sensor may wear prematurely.

Action
Inspect the sensor and replace if necessary.
WARNING
Always refer to the manufacturer’s safety data sheet for the chemicals and use the
necessary PPE. The chemicals can cause injury or death.

PPE

REFERENCE

QUANTITY

Protective gloves

–

1 pair

Safety goggles

–

1

PARTS

REFERENCE

Copper washer (kopparbricka) 10x16x2*

2559-003

6

SST fluid detection sensor

1004261

1

Parker o-ring 3-905 FKM 5-16 inch

130-199-3099

1

QUANTITY

*Jesko Attack needs all 6 pcs, Jesko Absolut only needs 4 pcs.

TOOLS

SPECIFICATION

QUANTITY

General mechanical tools

–

CONSUMABLES

REFERENCE

Loctite 243

130-174-0552

–

Loctite 480

1018501

–

Zip ties

–

–

–
QUANTITY

Prepare
1. Open the rear hood with the key fob or from the center console. If the 12 V is set to off,
open the rear hood manually, refer to WOM-00223.
2. Disconnect the 12 V system, refer to WOM-00082.

Inspect the Fluid Detection Sensor
The fluid detection sensor can be reached through the rear-frame top.
1. Put on the personal protective equipment.

© This document remains the property of Koenigsegg Automotive AB. It is provided with the understanding that it contains propriety information and
its contents must be handled accordingly. It must not be used for purposes other than that for which it is intended or be disclosed to unauthorized
persons. It must not be reproduced in whole or in part without prior permission in writing from Koenigsegg Automotive AB.

1[3]

TECHNICAL SERVICE BULLETIN
Doc. ID TSB-26131-02
Model Jesko
Kit
1103792

2. Do a check of the area around the fluid detection sensor

. The area should not be oily.

Oil in this area can be a sign that the fluid detection sensor needs to be replaced.

The illustration shows the Jesko Attack without the rear-frame top.
3. Do a check of the fluid detection sensor with your hand. It should not spin with ease:
3.1 If the sensor does not spin with ease and there is no oil in the area around the
sensor, no further action is required. Set the 12 V to ON and close the rear hood.
3.2 If the sensor does not spin with ease, but there is oil in the area around the sensor,
it needs to be replaced with a new one. Continue to the section Remove.
3.3 If the sensor can spin with ease, it needs to be replaced with a new one. Continue
to the section Remove.

Remove
1. Remove the cross brace, refer to:
º Jesko Absolut, WOM-00203
º Jesko Attack, WOM-00207.
2. Remove the rear-frame top, refer to WOM-00209.
3. Remove the rear dampers, refer to WOM-00101.
4. Remove the rear triplex damper, refer to:
º Jesko Absolut, WOM-00171
º Jesko Attack, WOM-00170.
5. Remove the rear stabilizer bar, refer to WOM-00208.
6. Put on the personal protective equipment.
7. Record the position of the fluid detection sensor harness

.

The illustration shows the Jesko Attack without the rear-frame top.
CAUTION
There could be some oil in the opening of the oil tank when you remove the fluid
detection sensor. Carefully disconnect the fluid detection sensor to prevent oil from
spilling and leaking.

© This document remains the property of Koenigsegg Automotive AB. It is provided with the understanding that it contains propriety information and
its contents must be handled accordingly. It must not be used for purposes other than that for which it is intended or be disclosed to unauthorized
persons. It must not be reproduced in whole or in part without prior permission in writing from Koenigsegg Automotive AB.

2[3]

TECHNICAL SERVICE BULLETIN
Doc. ID TSB-26131-02
Model Jesko
Kit
1103792

8. Carefully disconnect the fluid detection sensor and o-ring

from the oil tank

. Discard

the o-ring.
9. Disconnect the connector

from the harness for the LST gearbox.

10. Remove the fluid detection sensor unit from the vehicle.
11. Clean the threads of the oil tank opening from Loctite and debris.

Install
1. Put on the personal protective equipment.
2. Apply 2-3 drops of Loctite to the threads of the new fluid detection sensor.
Part: 1004261
Threadlocker: Loctite 480
3. Install the connector

to the harness for the LST gearbox.

The illustration shows the Jesko Attack without the rear-frame top.
4. Install the fluid detection sensor harness
in the recorded position.
Note
Make sure that the harness is not kinked, pinched or can touch sharp edges.
Consumable: Zip ties
5. Install the new fluid detection sensor

to the oil tank

with a new o-ring.

Part: 130-199-3099
Torque: 1 Nm
6. Install the rear stabilizer bar, refer to WOM-00208.
7. Install the rear triplex damper, refer to:
º Jesko Absolut, WOM-00171
º Jesko Attack, WOM-00170.
8. Install the rear dampers, refer to WOM-00101.
9. Install the rear-frame top, refer to WOM-00209.
10. Install the cross brace, refer to:
º Jesko Absolut, WOM-00203
º Jesko Attack, WOM-00207.

Warranty Information
If the repair is covered by the warranty terms, refer to Koenigsegg Warranty Process.
OPERATION
KWO574793 gearbox sensor inspection
KWO264212 gearbox sensor replacement
PART NO
Refer to the invoiced kit number.
DISCARDED PARTS
Any discarded parts mentioned in the TSB must be returned or destroyed according to the Dealer
Warranty Manual.

© This document remains the property of Koenigsegg Automotive AB. It is provided with the understanding that it contains propriety information and
its contents must be handled accordingly. It must not be used for purposes other than that for which it is intended or be disclosed to unauthorized
persons. It must not be reproduced in whole or in part without prior permission in writing from Koenigsegg Automotive AB.

3[3]

TECHNICAL SERVICE BULLETIN
Doc. ID TSB-26131-02
Model CC850
Kit
1103792

Gearbox Fluid Sensor Update
This instruction refers to other documents that are necessary to do the procedure.

Situation
The gearbox fluid sensor may wear prematurely.

Action
Inspect the sensor and replace if necessary.
WARNING
Always refer to the manufacturer’s safety data sheet for the chemicals and use the
necessary PPE. The chemicals can cause injury or death.

PPE

REFERENCE

QUANTITY

Protective gloves

–

1 pair

Safety goggles

–

1

PARTS

REFERENCE

Copper washer (kopparbricka) 10x16x2*

2559-003

6

SST fluid detection sensor

1004261

1

Parker o-ring 3-905 FKM 5-16 inch

130-199-3099

1

QUANTITY

*6 pcs are included in the kit but the CC850 only needs 4 pcs.

TOOLS

SPECIFICATION

QUANTITY

General mechanical tools

–

CONSUMABLES

REFERENCE

Loctite 243

130-174-0552

–

Loctite 480

1018501

–

Zip ties

–

–

–
QUANTITY

Prepare
1. Open the rear hood with the key fob or from the center console. If the 12 V is set to off,
open the rear hood manually, refer to WOM-00645.
2. Disconnect the 12 V system, refer to WOM-00489.

Inspect the Fluid Detection Sensor
The fluid detection sensor can be reached through the rear-frame top.
1. Put on the personal protective equipment.

© This document remains the property of Koenigsegg Automotive AB. It is provided with the understanding that it contains propriety information and
its contents must be handled accordingly. It must not be used for purposes other than that for which it is intended or be disclosed to unauthorized
persons. It must not be reproduced in whole or in part without prior permission in writing from Koenigsegg Automotive AB.

1[3]

TECHNICAL SERVICE BULLETIN
Doc. ID TSB-26131-02
Model CC850
Kit
1103792

2. Do a check of the area around the fluid detection sensor

. The area should not be oily.

Oil in this area can be a sign that the fluid detection sensor needs to be replaced.

The illustration shows the CC850 without the rear-frame top.
3. Do a check of the fluid detection sensor with your hand. It should not spin with ease:
3.1 If the sensor does not spin with ease and there is no oil in the area around the
sensor, no further action is required. Set the 12 V to ON and close the rear hood.
3.2 If the sensor does not spin with ease, but there is oil in the area around the sensor,
it needs to be replaced with a new one. Continue to the section Remove.
3.3 If the sensor can spin with ease, it needs to be replaced with a new one. Continue
to the section Remove.

Remove
1. Remove the cross brace, refer to WOM-00587.
2. Remove the rear-frame top, refer to WOM-00608.
3. Remove the rear dampers, refer to WOM-00588.
4. Remove the rear triplex damper, refer to WOM-00585.
5. Remove the rear stabilizer bar, refer to WOM-00586.
6. Put on the personal protective equipment.
7. Record the position of the fluid detection sensor harness

.

The illustration shows the CC850 without the rear-frame top.
CAUTION
There could be some oil in the opening of the oil tank when you remove the fluid
detection sensor. Carefully disconnect the fluid detection sensor to prevent oil from
spilling and leaking.
8. Carefully disconnect the fluid detection sensor and o-ring

from the oil tank

. Discard

the o-ring.
9. Disconnect the connector

from the harness for the LST gearbox.

10. Remove the fluid detection sensor unit from the vehicle.
11. Clean the threads of the oil tank opening from Loctite and debris.

© This document remains the property of Koenigsegg Automotive AB. It is provided with the understanding that it contains propriety information and
its contents must be handled accordingly. It must not be used for purposes other than that for which it is intended or be disclosed to unauthorized
persons. It must not be reproduced in whole or in part without prior permission in writing from Koenigsegg Automotive AB.

2[3]

TECHNICAL SERVICE BULLETIN
Doc. ID TSB-26131-02
Model CC850
Kit
1103792

Install
1. Put on the personal protective equipment.
2. Apply 2-3 drops of Loctite to the threads of the new fluid detection sensor.
Part: 1004261
Threadlocker: Loctite 480
3. Install the connector

to the harness for the LST gearbox.

The illustration shows the CC850 without the rear-frame top.
in the recorded position.

4. Install the fluid detection sensor harness

Note
Make sure that the harness is not kinked, pinched or can touch sharp edges.
Consumable: Zip ties
5. Install the new fluid detection sensor

to the oil tank

with a new o-ring.

Part: 130-199-3099
Torque: 1 Nm
6. Install the rear stabilizer bar, refer to WOM-00586.
7. Install the rear triplex damper, refer to WOM-00585.
8. Install the rear dampers, refer to WOM-00588.
9. Install the rear-frame top, refer to WOM-00608.
10. Install the cross brace, refer to WOM-00587.

Warranty Information
If the repair is covered by the warranty terms, refer to Koenigsegg Warranty Process.
OPERATION
KWO574793 gearbox sensor inspection
KWO264212 gearbox sensor replacement
PART NO
Refer to the invoiced kit number.
DISCARDED PARTS
Any discarded parts mentioned in the TSB must be returned or destroyed according to the Dealer
Warranty Manual.

© This document remains the property of Koenigsegg Automotive AB. It is provided with the understanding that it contains propriety information and
its contents must be handled accordingly. It must not be used for purposes other than that for which it is intended or be disclosed to unauthorized
persons. It must not be reproduced in whole or in part without prior permission in writing from Koenigsegg Automotive AB.

3[3]