Is the PDWA/PDWV placed before or after the servo ?

[crypto]

PDWA/PDWV stands for Pressure Differential Warning Actuator/Valve. I had my car modified from a single circuit with servo to a 2-circuit brake system without servo (for MOT reasons). In the meantime I got a second servo and both will go back in the car.

Unfortunately I can't find any information about where to place the PDWV in the car. Confusing is also that Lotus calls it a "valve". This suggests that the actuator piston is used not only for the switch but also to block the failing circuit from loss of fluid and pressure ? This should job should actually be done by the tandem master cylinder ? I have new (non original) tandem cylinder and was surprised how easy it was to bleed the two systems. I expected difficulties with bleeding the 2nd system as soon one system was air free.

Thanks, Peter

[pharriso]

"I had my car modified from a single circuit with servo to a 2-circuit brake system without servo (for MOT reasons). In the meantime I got a second servo and both will go back in the car."

This is a Plus2 or a Baby? Is there room for 2 servos in a baby? Federal cars had 2 circuits but no servo(s).

Most people take the servo out on a baby... Pedal effort is reasonable without it.

[crypto]

This is a Plus2 or a Baby? Is there room for 2 servos in a baby? Federal cars had 2 circuits but no servo(s).

Most people take the servo out on a baby... Pedal effort is reasonable without it.

It's a Sprint, and yes, I can handle the pedal force but I want all family members to handle the car as an everyday car. The original tandem cylinder is not available anymore, so I had to go for a slightly bigger bore which requires more pedal force.

Where is the PDWA placed in your car ?

[pharriso]

Where is the PDWA placed in your car ?

No servo(s), no PDWA!