Mercedes-Benz Sprinter | Fault "2623001 Charge air system on the

1,7,Fault "2623001 Charge air system offset drift |at idle".||
8,13,Let's see how to find and rectify |this problem on a Sprinter.||
14,19,The symptoms: The customer points at the |indicator lamp in the instrument cluster ...||
19,24,... and complains that the engine only runs |at max. 3000 revolutions per minute.||
25,30,The remedy: The fault memory is read out |with the aid of Star Diagnosis.||
31,34,The capital "F" indicates a current fault.|||
35,38,If we now call up the current fault codes |in the menu, ...||
39,44,... the fault "2623001|Charge air system offset drift at idle" appears.||
45,48,The next step is to "Check actual values".|||
49,54,Select the menu item "Check exhaust gas |recirculation". Then start the engine.||
55,59,If DAS shows an "air mass per stroke" |that is too low, ...||
59,63,... the fault should be looked for between |the air filter and the turbocharger.||
64,68,If the value is too high, as here, the fault |is downstream of the turbocharger.||
69,73,Preparations for correcting the fault:|||
74,79,First remove the air filter |and then the engine trim.||
80,83,The hose on the turbocharger can |now be removed.||
84,89,Actual value of "air mass per stroke" too low: |The fault may be due to damage to the red |lining of the hose.|
90,95,Actual value too high: A homemade solution |must be used to perform a leak test,||
96,99,because the pressure fittings to the new |turbocharger no longer fit.||
99,106,A pressure fitting with the part number:|W 640 589 0091 00 is required.||
107,117,Also an old charge air hose and |the testing tool kit with part number |611 589 02 21 00.|
118,124,The pressure fitting is inserted into the charge |air hose and fixed securely with a hose clamp.||
125,134,Then it is screwed straight onto |the turbocharger.||
135,140,By the way, this shop-made tool can |be used not only on these vans, ...||
140,143,... but also for passenger cars.|||
144,148,With the aid of the pressure reducing valve, |the charge air system is pressurized |with compressed air.|
149,157,Note: The pressure must be set |to no more than 0.3 bar.||
157,163,This prevents any damage |to the charge air system.||
164,167,Now we must locate the leak |in the charge air system.||
167,173,To do this, all the connections |are sprayed with a leak detector.||
174,182,Bubbles form at any leaks.|||
183,190,Repair: A common cause of leakage |are O-rings damaged during installation.||
191,199,These are located in the pipeline at the |turbocharger or at the resonance damper.||
200,205,Here you can clearly see that this seal ring |has been cut as well as crushed.||
205,212,The seal ring must be replaced.|||
215,223,Install the pipeline and recheck |the charge air system for leakage.||
226,231,Concluding work: Star Diagnosis must now |be used to reset the adaptation values ...||
231,237,... of the "hot film mass air flow sensor".|||
246,258,The same applies for the fault memory, |which must also be erased.||
263,268,Now for the final test. After the repair, |make sure that the indicator lamp ...||
268,271,... in the instrument cluster |no longer lights up ...||
271,278,... and that the engine speed increases |above 3000 revolutions per minute.||
280,287,The Sprinter is now as zippy as ever.|||

[@gnarkill32]

I have found it much easier to first install the green o-ring on the turbo. installing directly in the pipe as shown can cause it to catch and tear.

[@fleetmanager3988]

This was very helpful, thank you.

[@freddyyepez2472]

hola cuando sale el p0101 puede ser este problema que describe en el video

[@ismad.campbell7812]

NO ESTE es un problema donde el turbo compresor no entra y MARCA EL MEDIDOR DE FLUJO DE AIRE