It only has vacuum when the secondary air system is activated. The pump if faulty must be replaced along with the N control relay and if blown Fuse 31 40A. The construction of these things are all the same, this includes the pin lay outs, you can always saw the odd pin off to be sure and safe. It should sound like a vacuum cleaner motor as it spins at a very high rate, if it sounds like its arcing or rough running its probably at end of life. Local Mercedes dealer refused to give me a simple sketch! Its air pump doesn't work. This function usually only runs for a short time, when first starting the engine.
Fix: replace air pump, it is found low, under the batteryBad Relay controls the air pump : The relay is in the…. Check if the pump is full of water. If there is anything you cannot find in our catalog please and our knowledgeable customer service team will help you locate the part you need, fast. Do you have questions or want to add to the article? Thank you ahead of time. A job that would have cost in the region of £1000 with not much change, if it were to have been done at a Mercedes dealer.
Should it detect a incorrectness or deviation from the changes expected within the combustion gas control loop, then it will flag up a secondary air injection error. I would suggest paying the 20 and get your answer and then spend a few hours getting your monies worth. These airmatic problems have been driving me crazy. Figure 10 Secondary air pump check valve solenoid testing: Start by removing the right side vacuum hose from the solenoid and connecting it to a vacuum gauge red arrows. The also grounds the Air combination valve vacuum control solenoid circuit, which energizes the Air vacuum control solenoid. Recycle parts, packaging and fluids when possible. Problem solved thanks to you.
I tested wires from fuse boxt and they were ok. People have wrongly assumed that the secondary air system only operates at start up, this is not strictly true. If even one of these control sections is giving issue, then its comparative live testing will result in a fail and flag the P0410 fault code. This is the second of the review book series and each year around July a new review book will be published. Mercedes — Secondary air injection pump.
At some point they use more current than the fuse will handle. The fuse is rather big. It does this among other things by monitoring fuel trim and by identifying emissions changes then comparing its findings to an inbuilt reference map. I think it is call the air pump. The pump is located from underneath, under the right headlamp assembly.
Purchase, download and print your own copy for use in the workshop or just simply if you prefer to read all the content off line. . The air injection point is called the upstream injection point. So I know I have an airmatic system. If you would like to return an item or have questions about the process, please and one of our customer service experts will be happy to help.
Consult authorized factory manuals when performing repair procedures. Start the engine, it should be cold. Anyone know of any other ways to test a relay out. Yesterday two things came in the post. Only the original purchaser of the part can receive a credit after they have purchased a replacement.
The tests are going to be performed on a W211 with a 6-cylinder engine. The front two are shown red arrows. Thanks for the help guys. It sounds like you are fixed, but pumps commonly run until they expire, and I have seen a connector inside the fuse box melt and go open circuit too. If not, check if the vacuum hose is broken between the solenoid and intake manifold. I have repaired multiple S Class W220 sec air sys problems where the pump replacement and relay have done the job.
If you're using a debit card we suggest you switch to a credit card. The sizes of the nuts and bolts we give may be different from what you have so be prepared with different size sockets and wrenches. If so, replace it and the check valve. If this is not the exact Secondary Air Pump you are looking for, or you would like this part in a brand other than Bosch, please and one of our customer service experts will help you locate the exact part you need. Hi Airbag I was just reading you found a new relay for £5, I cant even find one for sale never mind for a fiver!! Once erased you will need to cycle the ignition for this fault to fully clear.
We also provide inexpensive and guaranteed 3 day, 2 day, and Overnight shipping options, so if you need your Secondary Air Pump tomorrow, eEuroparts. A Fuel pump relay B Ignition main circuits relay C — D — E Heated rear window relay F Ignition main circuits relay F1 30A Seat adjustment control module, left front F2 30A Seat adjustment control module, right front, seat adjustment relay front F3 7,5A Tyre pressure monitor control module, interior lamp rear F4 20A Fuel pump F5 — F6 — F7 — F8 7,5A Aerial signal amplifier, alarm system horn, alarm system gradient sensor F9 25A Sunroof control module F10 40A Heated rear window F11 — F12 15A Auxiliary power socket F13 5A Seat lumbar pump, reading lamps rear , telephone system F14 15A Rear screen wiper motor estate F15 10A Fuel filler flap relay 1 F16 20A Telephone system F17 20A Trailer control module F18 20A Trailer socket F19 20A Seat lumbar pump F20 7,5A Rear window blind relay G Fuel filler flap relay 1 H Fuel filler flap relay 2. Do I have your authorization to proceed? As mentioned, my original Tyco relay code is A 002 542 65 19 I figured there would be a Hella or aftermarket equivalent for a tenner or around there. Worst case is that the relay sticks on and the air pump remains powered beyond its 90 second period and running continuously to its final destruction. This issue seems quite common on C32's. Ive taken the cover off the relay, all looks ok to the eye.