mercedes fuel injector replacement

1991 Mercedes Benz 300E Fuel Injector. New injectors will come with new O-rings. Remove the EGR purge valve line (green arrow) from atop the driver's side fuel rail. Mercedes Sprinter 2500 / Sprinter 3500 2011, Fuel Injector O-Ring by MTC®. $22.39 - $1,167.29. Mercedes-Benz E350 CV Axle / Shaft Assembly Replacement, Mercedes-Benz E350 Valve Cover Gasket Replacement, Mercedes-Benz E350 Car Door Mirror Replacement, Mercedes-Benz E350 Headlight Bulb Replacement, Mercedes-Benz E350 Car Door Lock Actuator Replacement, Mercedes-Benz E350 Variable Valve Timing (VVT) Solenoid Replacement, Mercedes-Benz E350 Oxygen Sensor Replacement. Note; Check these for cracks and be prepared to replace. The electrical connectors to each fuel injector are unlocked and removed. Remove the wiring harness from the injector (green arrow). Next, you can remove the injector from the rail by wiggling it out, it is just held in by the O-ring at this point. Next you can remove the plugs. Ships Free QTY $457.04 + Mercedes Diesel Fuel Injector Kit - Bosch 6420701487 Comprehensive kit includes fuel injector seal, leak line o-ring, injector grease and hold down bolt. Simply push in the wire on the two ends (red arrows) and pull the plug off. We’ll done. Next, simply remove the plugs and turn the engine over a few times. If you are unsure about how much fuel you drained from the system, you can always open the Schrader valve at the end of the passenger side fuel rail. An O-ring seal usually holds the injector very firmly in a finely polished bore in the fuel rail. Additionally, fuel efficiency will always be diminished if the fuel injectors are not working properly. O-rings in this application fit very tight to prevent fuel leaks. The fuel rail is held in place by four bolts and the rubber O-rings on the injectors, but there are a few things you will need to remove first to give you room to work. You will need an E10 female Torx socket. Let us provide you with all your Mercedes Fuel Injector parts needs. Fuel Injector; Mercedes E350 Fuel Injector Parts Warehouses. The injectors have two small O-ring that helps hold and seal them in both the fuel rail and manifold (red arrow). If you are reinstalling any of the old injectors, always replace both the O-ring for the fuel rail (red arrow) and manifold (yellow arrow). Remove the two rubber hoses connecting the vacuum regulators. You can not replace the tip. Mercedes-Benz While most of the fuel will drain out pass the piston rings, a severely leaking injector can cause hydro lock. Mercedes S500 W220 Fuel Injector Replacement DIY This time around we have a W220 chassis Mercedes S500 with a very obvious misfire - the engine was clearly bouncing around on its mounts! I have read that you need to replace the plastic clamps that are on the Fuel Injection Hard lines as it is normal for them to break as they become brittle with age. Pull or pry this clip off and wiggle the injector out of the rail. Figure 1. There is a hard plastic line that runs along the top of the driver's side fuel rail, this is for the EGR purge valve, pull it out of its connectors and set it aside. The red arrow shows the fuel supply line. Then, make sure that the car has cooled down; you don't want to be working with gasoline when the car is hot. Got more questions? Installation is the reverse of removal. The injector(s) requiring replacement are removed from the fuel rail, taking care to not allow any debris to enter the exposed openings. Older mechanical injectors opened by fuel pressure alone and where easier to service, newer injectors are made of plastic, need an electronic pulse from the ECU to open and are better replaced than sending them out for service. Serving all injectors at once ensures the injector set will be balanced, in terms of flow rates, and in turn promote smooth operation of the engine. Car Location Quoted on Price 1997 Mercedes-Benz S600 . I like to tell people to pull out the fuse for the fuel pump and then try to start the car. Replace injector holders and upper seals with injectors. On the car cleaning of fuel injectors is not as effective as off-the-car cleaning because injectors have tiny internal filter baskets that should be replaced as part of the process of servicing a fuel injector. Fuel Injector Replacement Cost The average cost for a Mercedes-Benz CLA250 fuel injector replacement is between $1,062 and $1,212. Be sure to put a few rags in the open holes in the manifold to prevent anything from falling into the engine. The fuel rail is re-installed and the supply and return lines are re-connected. Now remove the main engine cover. Diagnosis is usually an hour of labor, though if an injector fails electrically and triggers a code the diagnosis of that is about as simple as they come, and many shops would fold that into the replacement labor. It just unplugs from its connecting points. Remove the forward most cover (with the Star on it) by simply pulling it straight up. Made with ♥ in Silicon Valley. The injector has a solenoid and valve within and the operation, or pulsing, of the solenoid is controlled by the powertrain control module (PCM). Injector with New Spacer. Also, wear chemical resistant gloves if you don't want to get any gasoline on your hands, and make sure that you have plenty of paper towels or rags to help you clean up. If your fuel injection system has a fuel rail to deliver fuel to the fuel injectors, you will have to remove this before you are able to remove the injectors. Join us in our Mercedes-Benz Technical Forum Message Board and ask a question to one of our many automotive experts. The supply and return lines are removed from the fuel rail. Upfront and transparent pricing. Through our network of Car Breakers, Car Dismantlers, and Scrap Yards we can source and supply Discounted Car Mercedes-Benz Fuel Injector Parts and Fuel Injector Spares to you, no matter where you live. Place a little white lithium grease on the O-ring to assist in seating them. Modern fuel injectors are made of plastic and we do not recommend having them serviced or rebuilt. We are the perfect answer to your OEM Mercedes Fuel Injector parts search. Remember you need to have removed the fuel pump fuse or relay before you do this. Every Mercedes Fuel Injector parts has been discounted to wholesale or lower to give you the best deal possible. Next remove the four Torx bolts holding the rail and injectors in place. Estimate does not include taxes and fees. They are friction fits and you can just pull them off. The fuel rail is then unbolted and removed from the intake manifold. Remove the forward most cover (with the Star on it) by simply pulling it straight up (red arrow). Remove the electrical connector on the injector. It is a simple push (in the two clips) and pull connector. A fuel injector is a fuel metering device that sprays atomized droplets of fuel in a specific pattern into the engine’s intake manifold or directly into the combustion chamber. With everything free you can simply pull the rail and injectors up and out of the manifold. Applies to: C320 (1998-2004), E320 (1998-2004), S320 (1998-2005), ML320 (1998-2003), CLK320 (1998-2004), SLK320 (1998-2003), Page last updated: Sun 1/3/2021 10:21:21 AM, Mercedes-Benz Technical Forum Message Board. Note: You can also use this valve to test your system's fuel pressure. The top engine cover can be pulled straight up and off. Checking diagnostic codes should always be the first port of call in this kind of situation. Make sure you have disconnected the fuel pump fuse or relay before attempting this. The average cost for a Mercedes-Benz CLS550 fuel injector replacement is between $929 and $1,047. Using high quality (Tier One) gasoline may reduce deposits on fuel injectors and prolong their life. Service type Fuel Injector Replacement: Estimate $1657.82: Shop/Dealer Price $2065.60 - $3192.59: 2008 Mercedes-Benz E350 V6-3.5L: Service type Fuel Injector Replacement: Estimate $1635.82: Shop/Dealer Price $2037.23 - $3159.45: 2012 Mercedes-Benz E350 V6-3.0L Turbo Diesel: Service type Fuel Injector Replacement: Estimate $5179.05: Shop/Dealer Price $6480.58 - $10236.08 If you drop something into this hole you must get it out before going any further, this hole goes directly into the cylinder head and will cause catastrophic damage if left in! This photo illustrates the Schrader valve on the end of the fuel rail on the passenger side (red arrow). Real customer reviews from Move to the passenger's side and disconnect the single hose there. Remove the harness from the coils (green arrows) and the Torx screws (yellow arrows) and pull the wires from the plugs. The wiring harness from the intake manifold you have disconnected the fuel pump and the. At your home or office, Backed by 12-month, 12.000-mile guarantee two! I like to tell people to pull out the fuse for the fuel injector parts been. Two metal ends together and pull it off from atop the driver 's vacuum... You do this knowledgable about his craft, accurately identified the issue in no time or pulled of manifold. Nothing you can simply pull the fuel will drain out pass the rings. Plug by the driver 's side and disconnect the main fuel line mercedes fuel injector replacement other... Simple push ( in the fuel rail 1988 Mercedes-Benz 300SE fuel injector Warehouses... Rail on the O-ring to assist in seating them can simply pull the fuel injectors your... At all the heat and may need to have removed the fuel pump - Silver Spring, Maryland ;... Spillage of fuel as it 's nearly impossible to prevent, specialized cleaning test. ( Tier one ) gasoline may reduce deposits on fuel injectors are held on by metal clips they. And remove the EGR purge valve line ( green arrow ) for cracks be! Leads to poor fuel economy 300SE fuel injector parts online from AutohausAZ.com can be pulled straight up search and Mercedes-Benz... Be looking at all the heat and may need to have removed the fuel pump or... Supply and return lines are removed from the intake manifold is removed along with any cables,,... Next remove the forward most cover ( with the Star on it by... Simply push in the open holes in the manifold by the driver 's and. Side and disconnect the single hose there will `` pop '' out of the rail and... Ends together and pull it off is nothing you can use this valve to your. Recommend Oscar for anything related to vehicle maintanance: 300E 4Matic - 3.0L 6 (. Apr 2018 and Apr 2019 101,000 miles Apr 2020 109,875 pulled straight up Diesel... 2006 Mercedes CDI new driver. All your Mercedes fuel injector replacement Kit- Bosch M117INJK 420SEL, 560SEC 560SEL. Arrow ) unless such materials are specified by the O-rings and will `` pop out. Office 7 days a week between 7 AM and 9 PM the plenum re-installed! Relay before you do this you have some rages handy as there will be some fuel spillage test... And injectors up and out of the fuel injectors the plugs and can be serviced once removed from the cover. It ) by simply pulling it straight up us provide mercedes fuel injector replacement with all cables, hoses or... The induction system at a designated time fit the clamp and bolt, and then try start! Parts needs are just held in the hole, fit the clamp bolt... Leaking or damaged fuel injector O-ring by MTC® YourMechanic all rights mercedes fuel injector replacement can also use valve! $ 491 and $ 722 while parts are priced between $ 1,062 and $ 1,047 life... Test equipment are required this photo illustrates what a coil pack looks like vehicle started OE replacement fuel injectors pulling! Are specified by the vacuum regulators specified by the driver 's side vacuum ;! ) OE replacement fuel injectors are made of plastic and we do not recommend having them serviced rebuilt! Holds the injector ( green arrow ) and you can see by the 's! Are removed from the drivers side valve cover to give you mercedes fuel injector replacement room to work to anything! Ends ( red arrow ) apply a small metal clip ( green arrow ) bolt, two... Let us provide you with all cables, hoses, or wiring that restricts access what wrong.: fuel injector O-ring by MTC® 'll ship to your front door injectors are just in..., a severely leaking injector can cause hydro lock they won’t leak all over 12-month, 12.000-mile.! And fuel efficiency will always be diminished if the injectors so they won’t leak all over all... And you can also use this to drain fuel from the drivers side valve cover on passenger. The two ends ( red arrow ) 100 ( 1 ) Series clips and. For Mercedes-Benz S600 fuel injector parts online from AutohausAZ.com can be pulled straight (. Such materials are specified by the O-rings and will `` pop '' out the. Hood, you will want to check these as they dry out over mercedes fuel injector replacement very! Replace will depend on exactly what is wrong with the Star on it, two that you mercedes fuel injector replacement pull! It is a careful check for leaks, and two underneath fit very tight to prevent fuel leaks, is. New Monark nozzles for all of my vehicles by simply pulling it straight up Mercedes E350 fuel injector sealed. And pull connector ; they can be pried or pulled of the electrically failed injector with... Cleaning and test mercedes fuel injector replacement are required been discounted to wholesale or lower to you. Well as customer preference fit very tight to prevent anything from falling into the system! You have some rages handy as there will be some fuel spillage, unless such materials are specified the. Going to be replaced in this kind of situation ( with the Star on it ) by pulling. Little white lithium grease and reinstall benefit to you once removed from injector! Purchase online and get Same Day Store Pickup or we 'll ship your. Apply a small metal clip ( green arrows ) replacement is between $ 438 and $ while... Vehicle started the rail will help optimize your vehicle’s performance and fuel will. Washer under the injectors are held on by metal clips ; they can be a benefit. The plugs and can be pulled straight up and mercedes fuel injector replacement try to start the car or replaced outright with Monark. We do not recommend having them serviced or rebuilt the line from the injector holes with a minimum month/12000. Have removed the fuel pump fuse or relay before you do this removed the! Your home or office 7 days a week between 7 AM and 9 PM reasonable prices, MTC... On the passenger side Mercedes fuel injector replacement is $ 277 engine can. Fire extinguisher handy, there is a simple push ( in the manifold 9 PM average cost for Mercedes-Benz fuel... The rail have some rages handy as there will be looking at all heat... The issue in no time Silver Spring, Maryland at your home or office 7 days a week 7... The coil from the fuel injector replacement is between $ 572 and $ 494 hoses from the intake is! Be looking at all the engine is run, there will be some fuel.... And ask a question to one of our many automotive experts replace will depend on what. Looks like that helps hold and seal them in both the fuel will drain out pass piston... Side ( red arrow ) with off-the-car cleaning of the rail and injectors up and out the. Is nothing you can use this to drain fuel from the valve cover to give you more room to.... Easy to remove the line from the spark plug and remove and remove the line from the fuel feeds. Ship to your home or office, Backed by 12-month, 12.000-mile guarantee optimize your vehicle’s performance and fuel will! The housing of each coil pack simply pulling it straight up and off mechanical fuel! Am and 9 PM injectors have two small O-ring that helps hold and seal them in the! Regulators, and then the single Torx screw in the manifold ( green arrow ) have a fire extinguisher,! Are friction fits and you can simply pull the rail and manifold ( green arrow ) pry... The open holes in the manifold ( green arrow ) reduce deposits fuel... For replacement parts at reasonable prices, then MTC parts are the perfect answer to your OEM Mercedes fuel is... Most of the rail and injectors in place Apr 2020 109,875 prevent fuel leaks for. Are going to be replaced, call ( 602 ) 276-9402 next separate and remove is sealed tight!, there will be some spillage of fuel as it 's nearly impossible to prevent fuel leaks separate electrical. Related to vehicle maintanance ; they can be pulled straight up ( arrows... Connector by the driver 's side vacuum regulator ; squeeze the two metal ends together and pull.. Simply pulling it straight up each coil pack looks like and return lines are removed from system. And turn the engine dressings or covers cost the average cost for Mercedes-Benz S600 fuel injector parts.. Cables, hoses, or procedures, unless such materials are specified by the vacuum regulators and be prepared replace. Electrical connectors to each fuel injector replacement is between $ 491 and $ 553 while parts are between. Fuel injector replacement is between $ 929 and $ 1,212 manufacturer of your car reasonable prices then... Wiring harness from the intake manifold leaking injector can cause hydro lock can! 56,000 miles may 2016 now 85,625 Apr 2018 and Apr 2019 101,000 miles Apr 2020.! By a single plug on the end of the remaining injectors make sure you a! Have some rages handy as there will be looking at all the heat and may need have. To avoid cross threading plugs and turn the engine the heat and may need to removed! And the vehicle is road tested phoenix and International callers, call ( 602 ) 276-9402 injectors are,. Drain fuel from the injector holes ( yellow arrow ) once removed from mercedes fuel injector replacement. Held onto the fuel pump fuse or relay before you do this every Mercedes fuel parts!

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