Here is what happens My car sits in a garage at night. Anyone know of any other ways to test a relay out. Hoping you might be able to point me in the right direction. Thanks ps - Brilliant forum full of info for a new owner so thank you all. Air is collected and pumped into the check valve heads by the twin vane air pump into a rubber supply hose that interconnects both air check valves.
This issue seems quite common on C32's. This information is only a summary. Complete shipping and return policy information can be found in our. The second Mercedes Gen-In Site Review Book 2016 is now available to purchase and download. Any information displayed on this website has not been approved by the Daimler Group and the products or services we sell or advertise via this website have not been endorsed by the Daimler Group.
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. Found that orange maxi fuse blown. At the same time the electrical solenoid controlling the check valve vacuum is energised, allowing vacuum to pull open both diaphragm caps. 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. Burned out rotor of the air pump, probably due to overheating. 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.
Hopefully this video is useful to you and can help save you money and prevent un-necessary time at the dealer. We also provide inexpensive and guaranteed 3 day, 2 day, and Overnight shipping options, so if you need your Secondary Air Pump tomorrow, eEuroparts. The pump was still short cycling after a 7-10 mile drive during one of my tests last week. So I know where the fuse and relay are located, I know where the pump is and the connector to it, I even have a voltmeter not really sure how to use it because about a million settings on the dial. Hi, Secondary Air Pump issues and need to replace the Relay.
How to safely remove the case of a power relay for inspection. The fact this is an emissions system means it is required to test itself periodically and report any malfunction. In the vicinity of the black vacuum solenoid that diverts supply to the air check valves is a small blue plastic vacuum check valve, these have been known to stick and cause incorrect operation of the air injection check valves. Bosch created the original generator for Mercedes Benz and worked for Mercedes prior to be allowed to enter into a contract with Mercedes to provide generators. This means the system has been tested during the drive cycle and is ready and functional. 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. People have wrongly assumed that the secondary air system only operates at start up, this is not strictly true.
Bummer, so you had similar issues? Relays in this circuit as well as ones in the Air-matic circuit should, in my view, be changed as a service item every 50k or so miles to attempt to prevent costly pump repairs. Vacuum is then applied to both Air combination valve diaphragms which opens the shut off valves. For almost 150 years the Bosch name and reputation for quality has been unsurpassed in the automotive aftermarket. Air is injected thru passages in the cylinder heads. I read another post about the relay being the only salmon colored relay in the fuse box.
We are also constantly updating our Bosch parts selection to give you the best possible selection of parts. Once the silver contact area of the relay has deteriorated unreliable operation will result. Even Mercedes service information is not this informative and put down in such a matter of fact, understandable way. It does this among other things by monitoring fuel trim and by identifying emissions changes then comparing its findings to an inbuilt reference map. You are best to identify this hose before working in the area — In my view it is best left undisturbed! This is a common Mercedes problem. Im going to put a wire on it tomorrow to battery to see if it is the pump ceased or if the electrics relay etc leading to the pump. I realise this would need to be tested within 30 or so seconds of starting from cold.
It is driving me cazy!!!! 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. A002 542 1319 Testing the pump is straight forward, lift up and off the front section of the plastic engine cover and remove the air pump power connector, apply 12v to the exposed contacts from an external source and listen to the sound the pump makes — if any. Could someone point it out? Never had a problem with that on other cars so never even knew to check it. If you can replace this part while you are in there, do so, its cheap and readily available through the dealer parts network or from several web based pattern part sources. Searching for this only brings up threads of owners with similar issues. 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. Miffy, im not too hot on electrical stuff so forgive my approach.
Fuse box in engine compartment. Mercedes Benz M113 Engine S Class S500 I have recently taken delivery of a used S Class Mercedes, 2002 model W220. The Mercedes-Benz Owners is a completely independent organisation. Secondary air injection protection fuse 40A — Fuse 31- Orange Maxi-fuse There are several faults that can occur to raise the P0410 code and resulting amber warning lamp, but often it is down to a failure of the secondary air pump itself. Removal is done by removing the single reverse torx set screw from the aluminium saddle plate that clamps the pump between the front of two cylinder heads. He suggested that cylinder head ports were blocked with carbon.
Note — fault light cleared in this picture. A new secondary air pump from Bosch will cost in the order of £300 for the part alone and maybe £35 for the correct relay. You receive our monthly magazine and free classified ads when you decide to trade up a model. Ive taken the cover off the relay, all looks ok to the eye. I think i changed mine with a new one and did not need it as when i checked old one out there was no bad solder joints it looked just like new, Is your secondary pump over running or not working. Only after the engine has warmed up and at some further point during the current drive cycle will the system be checked once more for correct operation. Mercedes — Secondary air injection pump.