Vacuum EGR valve testing (2002-2003)

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My Name: Citroen-Driver

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Model: C3 Pluriel - with or without roof
Year: 2003 (53)
Engine Size: 1.6 (16v)
Fuel Type: Petrol
Mileage: 90000
Trim Level: VTR+
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: ET3 16-valve (90 PS)
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2002 Citroen C3 EGR testing -vacuum...
2002 Citroen C3 EGR testing -vacuum test-




The early Citroen C3 (2002-2003, L4 level engine) has a vacuum controlled EGR valve.

The test for this is to remove it from the car and attach a hand held vacuum tester like this.



Observe the valve open with vacuum applied, the valve should hold in the open position and stay open until the vacuum is released.


If the valve won't open with vacuum then it may be stuck and need cleaning. Clean and test again.


If the valve won't stay open under vacuum it is faulty and needs a replacement.


If the valve won't close after it opens and vacuum is released then it may be dirty, clean it and test again.

If testing fails after cleaning, replace the EGR valve, part number 1628.XV


EGR valve for Citroen C3 2002
EGR valve for Citroen C3 2002
EGR_valve_early_citroen_C3_diesel_for_cleaning_and_inspection.JPG (118.36 KiB) Viewed 338 times

If the factory clip was removed to release the EGR valve from the EGR pipe, fit a replacement EGR clip, part number is 1628.3J (here) 'Tube Collar'.

EGR Clip
EGR Clip
clips-egr-valve-citroen-c3.JPG (47.65 KiB) Viewed 336 times
User avatar
My Name: Citroen-Driver

C3 Master
Posts: 253
Joined: Mon Dec 18, 2017 12:10 am
Model: C3 Pluriel - with or without roof
Year: 2003 (53)
Engine Size: 1.6 (16v)
Fuel Type: Petrol
Mileage: 90000
Trim Level: VTR+
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: ET3 16-valve (90 PS)
Has thanked: 48 times
Been thanked: 38 times

Post

Later L5 engines (from September 30th 2003 and on models) have an electronic EGR valve and these are tested differently.

You can identify the later EGR valve by a lack of vacuum pipe and the addition of an electrical connector.
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