Hello!
I need help!
How to tighten the injector clamping screw of a 2015 Citroen c4 picasso 2.0 HDI, or how many Nm should I tighten it with?
Screw size M8
Delphi injector
Engine DW10FD
VF7**************[VIN obfuscated, can be read by forum staff]
Thx Zsolo
Injector torque
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mickthemaverick
- Moderating Team
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- Joined: 11 May 2019, 17:56
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Re: Injector torque
Have a look through this : https://www.pugaddicts.co.uk/2012/12/pe ... -data.html 
I used to be indecisive, now I'm not so sure!
I used to ride on two wheels, but now I need all four!
I used to ride on two wheels, but now I need all four!
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Zsolo1
- Posts: 4
- Joined: 22 Mar 2026, 19:35
Re: Injector torque
Thank you!
Do you think the injectors on the two different engines should be tightened the same way, even though one is Bosch and the other Delphi?
DW10FD vs DV10TD?
Do you think the injectors on the two different engines should be tightened the same way, even though one is Bosch and the other Delphi?
DW10FD vs DV10TD?
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mickthemaverick
- Moderating Team
- Posts: 20092
- Joined: 11 May 2019, 17:56
- x 7769
Re: Injector torque
As I understand it the difference between those engines is in the emissions control so I would expect them to be the same torque settings for the injector clamps. 
I used to be indecisive, now I'm not so sure!
I used to ride on two wheels, but now I need all four!
I used to ride on two wheels, but now I need all four!
-
Zsolo1
- Posts: 4
- Joined: 22 Mar 2026, 19:35
Re: Injector torque
I read somewhere that the Delphi injector must be pre-tensioned with a minimum torque ("X" Nm), and then secured to the appropriate degree with a protractor. The difference, according to my information, is that the Bosch works with lower pressure. That's why there is a different procedure.
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mickthemaverick
- Moderating Team
- Posts: 20092
- Joined: 11 May 2019, 17:56
- x 7769
Re: Injector torque
Fair enough you already know more about them than me! 
I used to be indecisive, now I'm not so sure!
I used to ride on two wheels, but now I need all four!
I used to ride on two wheels, but now I need all four!
-
Zsolo1
- Posts: 4
- Joined: 22 Mar 2026, 19:35
Re: Injector torque
DW10FD (2.0 BlueHDi – modern Delphi)
Clamping bolt torque: ≈ 7–9 Nm + 65–75° tightening
(typical: 8 Nm + 70°)
DW10TD (older 2.0 HDi)
Clamping bolt torque: ≈ 7 Nm + 60–65° tightening
Unfortunately, what I know is not official...
Clamping bolt torque: ≈ 7–9 Nm + 65–75° tightening
(typical: 8 Nm + 70°)
DW10TD (older 2.0 HDi)
Clamping bolt torque: ≈ 7 Nm + 60–65° tightening
Unfortunately, what I know is not official...