Not all older MFI and CIS fuel injectors are "restorable." Tighten them down to 75- 80Nm. 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. Injector with New Spacer. Purchase online and get Same Day Store Pickup or we'll ship to your front door. While most of the fuel will drain out pass the piston rings, a severely leaking injector can cause hydro lock. Mercedes Sprinter 2500 / Sprinter 3500 2011, Fuel Injector O-Ring by MTC®. Purchasing Mercedes E350 Fuel Injector parts online from AutohausAZ.com can be a huge benefit to you. Remove the electrical connector on the injector. This is the fuel feed sub-system.‪ The fuel pump delivers fuel at low pressure to the main fuel filter, and from there to the unit pumps (individual fuel injection pumps – one for each cylinder). Once he replaced the part, the vehicle started. Next you can remove the plugs. There are four clips on it, two that you can see by the vacuum regulators, and two underneath. Some are just plain worn out. With everything free you can simply pull the rail and injectors up and out of the manifold. Modern fuel injectors are made of plastic and we do not recommend having them serviced or rebuilt. Begin by removing the larger rubber crossover hose between the vacuum regulators on the front of the engine, along with the small rubber hose that has a Y connector on the passenger side. OE No. Using an E10 female Torx you can now remove the four Torx bolts holding the fuel rail and injectors to the intake manifold (green arrows). Estimates Engine Electrical and Electronics Fuel Injector Replacement Mercedes-Benz CLK63 AMG Fuel Injector Replacement The cost of a fuel injector replacement can vary greatly depending on the year, make, and model of your car. 56,000 miles May 2016 now 85,625 Apr 2018 and Apr 2019 101,000 miles Apr 2020 109,875. Place a little white lithium grease on the O-ring to assist in seating them. 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. If the injectors are serviced, specialized cleaning and test equipment are required. Pull the cover straight up and off. 1991 Mercedes Benz 300E Fuel Injector. Installation is the reverse of removal. If you had a severely leaking injector it is not a bad idea to pull the plugs and turn the engine over a few times to get the gas out of the cylinder. Got more questions? Have a fire extinguisher handy, there will be some spillage of fuel as it's nearly impossible to prevent. 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. © Our mobile mechanics offer services 7 days a week. Phoenix and International callers, call (602) 276-9402. 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. Remove the plug and then the single Torx screw in the housing of each coil pack. 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. /. The average cost to replace a fuel injector on most vehicles, which is one of the more common repair needs, would be about $140, excluding diagnosis. YourMechanic All rights reserved. It was the most wonderful experience. That service might involve replacement of the electrically failed injector along with off-the-car cleaning of the remaining injectors. It is easy to remove the plugs and can be cheap insurance. Fast and easy service at your home or office, Backed by 12-month, 12.000-mile guarantee. Replace injector holders and upper seals with injectors. The car will turn over and then die. Either option requires removing the injector from the car and the following procedure is typical: Yes, so long as there is no external leak of fuel from a broken or malfunctioning injector, it is safe to drive the car. Additionally, fuel efficiency will always be diminished if the fuel injectors are not working properly. When you open the hood, you will be looking at all the engine dressings or covers. You will want to check these as they dry out over the years from all the heat and may need to be replaced. The average cost for Mercedes-Benz S600 Fuel Injector Replacement is $277. It is a simple push (in the two clips) and pull connector. The electrical connectors to each fuel injector are unlocked and removed. An O-ring seal usually holds the injector very firmly in a finely polished bore in the fuel rail. Do this about 2-3 times - it will help drain excess fuel out of your system, also open the gas cap to help depressurize the system. Do not use fuel system cleaning compounds, or procedures, unless such materials are specified by the manufacturer of your car. Using a new O-ring, the serviced or replaced injector is re-inserted into the fuel rail — using engine oil on the O-ring to prevent damaging it. Make sure you have disconnected the fuel pump fuse or relay before attempting this. 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. 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. Knowledgeable and professional. The torque settings are for this engine … Mercedes-Benz E350 - Pre-purchase Car Inspection - Debary, Florida. Injectors can be serviced once removed from the car or replaced outright with new injectors. 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. Refine by: Fuel Injector (part) Brand. Be sure to put a few rags in the open holes in the manifold to prevent anything from falling into the engine. The choice to repair versus replace will depend on exactly what is wrong with the injector as well as customer preference. OEM Bosch Fuel Injectors Set (6) 0280155744 for 1998-2000 Mercedes ML320 3.2 V6 (Fits: Merced… First, disconnect the main fuel line at the end of the rail. Tighten the injector line nuts at the pump, if you tightened the nuts at the injectors, back them off a turn or two so we can bleed the air out of the lines. Perform the injector removal in a clear, open, and well-ventilated space, and it may not hurt to have an assistant around in case there are any problems. The fuel rail is re-installed and the supply and return lines are re-connected. Join us in our Mercedes-Benz Technical Forum Message Board and ask a question to one of our many automotive experts. Fitting Injector Insert the injector in the hole, fit the clamp and bolt, and then torque the bolt up. Cleaned fuel injectors, adjusted and with new Monark nozzles. 1988 Mercedes-Benz 300SE Fuel Injector: Pull the fuel rail and injectors up and out of their holes in the manifold (green arrows). There are four clips holding it on - two by the vacuum regulators (yellow arrows and inserts lower left and right), and two hidden under the cover (red arrows). Remove the two rubber hoses connecting the vacuum regulators. $22.39 - $1,167.29. There are no replacement parts available for Bosch mechanical gas fuel injectors. Restrictions. document.write(new Date().getFullYear()) Checking diagnostic codes should always be the first port of call in this kind of situation. Now remove the main engine cover. Modern fuel injectors are made of plastic and we do not recommend having them serviced or rebuilt. Mercedes Benz 1977-1981 280CE 280SE 280E Fuel Injector Replacement CIS Bosch Kit (Fits: Mercedes-Benz) 4.5 out of 5 stars (31) 31 product ratings - Mercedes Benz 1977-1981 280CE 280SE 280E Fuel Injector Replacement CIS Bosch Kit Fuel injectors are usually connected to a fuel rail located on the top of the engine and the fuel rail, in turn, is supplied with fuel under pressure from the fuel pump located in the fuel tank. The injectors are held on by metal clips; they can be pried or pulled of the rail. Upfront and transparent pricing. 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. Simply push in the wire on the two ends (red arrows) and pull the plug off. Using high quality (Tier One) gasoline may reduce deposits on fuel injectors and prolong their life. 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). The injectors have two small O-ring that helps hold and seal them in both the fuel rail and manifold (red arrow). The upper plenum on the intake manifold is removed along with any cables, hoses, or wiring that restricts access. _____ 84 300D, 82 Volvo 244Gl Diesel ... 2006 Mercedes CDI new daily driver! You will need an E10 female Torx socket. They are both just friction fits and will pull off. Each coil is connected by a single plug on the harness. Let us provide you with all your Mercedes Fuel Injector parts needs. 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! The red arrow shows the fuel supply line. Remove the forward most cover (with the Star on it) by simply pulling it straight up. A restriction of only 8% to 10% in a single fuel injector can lean out the fuel mixture … The top engine cover can be pulled straight up and off. Remove the two plastic air inlet connector tubes. Make sure you have some rages handy as there will be some fuel spillage. New injectors will come with new O-rings. This photo illustrates what a coil pack looks like. Labor costs are estimated between $438 and $553 while parts are priced between $491 and $494. Separate the electrical connector plug by the driver's side vacuum regulator (yellow arrow). ... 1993 Mercedes-Benz 300E Fuel Injector: 300E 4Matic - 3.0L 6 Cyl (12 Valve) + Mercedes-Benz 300SE 1988-1991. However, if the injector is known to be malfunctioning, it can cause engine misfires, excessive emissions or, in the case of a badly leaking injector, can overload and overheat the catalytic converter. Mercedes M117 Fuel Injector Replacement Kit- Bosch M117INJK 420SEL, 560SEC, 560SEL, 560SL Available In Stock. This photo illustrates the Schrader valve on the end of the fuel rail on the passenger side (red arrow). Note; Check these for cracks and be prepared to replace. The plenum is re-installed along with all cables, hoses, or wiring. We’ll done. CLS550. If you have had an injector that has been leaking heavily it can be a good idea to remove the coils and plugs to drain the combustion area of the extra fuel. Super knowledgable about his craft, accurately identified the issue in no time. Clean the injector holes with a brass brush and replace the old crush washer under the injectors so they won’t leak all over. Then, make sure that the car has cooled down; you don't want to be working with gasoline when the car is hot. 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. CARS.COM — Cleaning fuel injectors is a service frequently recommended by dealers and repair shops.But unless there are noticeable signs of clogged fuel injectors (such as a … Remove the wiring harness from the injector (green arrow). The PCM controls the solenoid’s “on” time in order to keep the air-fuel ratio optimized while the engine load and operating conditions constantly change. Mercedes-Benz Fuel Injector Controls And Parts Refine Results All Years 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 Next, simply remove the plugs and turn the engine over a few times. A weak or improperly working injector can do everything from send no fuel, to leak raw, non-atomized fuel into your engine. Tegger.com. Start the threads by hand to avoid cross threading. 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. Apply a small amount of White Lithium grease and reinstall. GB Remanufacturing® Fuel Injector Seal Kit. 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 Drop it off at our shop and pick it up a few hours later, or save time and have our Delivery mechanics come to you. Finally, the engine is run, there is a careful check for leaks, and the vehicle is road tested. Disconnect the two hoses from the drivers side valve cover to give you more room to work. The supply and return lines are removed from the fuel rail. Pull or pry this clip off and wiggle the injector out of the rail. You can not replace the tip. Optimize fleet uptime and compliance via mobile vehicle repairs, Partner with us to simplify and scale fleet maintenance, Over 25,000 topics, from beginner tips to technical guides, Check cars for recalls, common issues & maintenance costs, Hand-picked, community-rated professionals, Our mechanics make house calls in over 2,000 cities, Explore nationwide job opportunities for automotive technicians, Trusted mechanics, rated by thousands of happy car owners, Fleet maintenance with certified mobile mechanics, Number of Mercedes-Benz E350 services completed, TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS, Mercedes-Benz E350 - 78,000 Miles Maintenance Service - McKinney, Texas, Mercedes-Benz E350 - Brake Rotor/Disc Replacement (Front, Rear) - Covington, Georgia. Next separate and remove the two plastic air intakes. 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 … This is the bottom of the washer and should point down. It just unplugs from its connecting points. Mercedes-Benz Note: You can also use this valve to test your system's fuel pressure. Move to the passenger's side and disconnect the single hose there. Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM. Unplug the coil from the spark plug and remove. We will ship your order as soon as possible using UPS. Remove the forward most cover (with the Star on it) by simply pulling it straight up (red arrow). Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST. Less than $50 (2) $50 - $100 (1) Series. New injectors come complete with new O-rings. Once the engine is cold, the pressure within the fuel rail is relieved by briefly running the engine with the fuel pump fuse out. If an injector problem develops that requires removal of one injector, the best practice is to remove and service all of the injectors at the same time. If you’re looking for replacement parts at reasonable prices, then MTC parts are the way to go. A leaking or damaged fuel injector leads to poor fuel economy. Make sure you place a rag over the injector holes (yellow arrow) to stop anything from falling in. They are friction fits and you can just pull them off. Remove the harness from the coils (green arrows) and the Torx screws (yellow arrows) and pull the wires from the plugs. The injector has a solenoid and valve within and the operation, or pulsing, of the solenoid is controlled by the powertrain control module (PCM). Made with ♥ in Silicon Valley. Real customer reviews from If you are experiencing a vacuum leak it may be one of these O-rings. Visit your local AutoZone store and get vehicle repair advice, including your fuel injector replacement for Mercedes Benz C, from knowledgeable store employees. 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. A properly working injector will send a precise amount of atomized fuel into the induction system at a designated time. Next remove the four Torx bolts holding the rail and injectors in place. Next, unclip the electrical connector by the driver's side vacuum regulator; squeeze the two metal ends together and pull it off. The injector is held onto the fuel rail by a small metal clip (green arrow). The fuel rail is then unbolted and removed from the intake manifold. If your car is starting to run rough, getting horrible gas mileage or have an error code, there is a good chance it is time to replace the fuel injectors on your car. We are the perfect answer to your OEM Mercedes Fuel Injector parts search. You can use this to drain fuel from the system, but have some rags ready. If the tip is worn out or damaged there is nothing you can do to repair that. Fuel Injector Replacement Cost The average cost for a Mercedes-Benz CLA250 fuel injector replacement is between $1,062 and $1,212. Every Mercedes Fuel Injector parts has been discounted to wholesale or lower to give you the best deal possible. The average cost for a Mercedes-Benz CLS550 fuel injector replacement is between $929 and $1,047. Fuel Injector; Mercedes E350 Fuel Injector Parts Warehouses. I like to tell people to pull out the fuse for the fuel pump and then try to start the car. Bosch (1) Standard (1) Beck Arnley (1) Price. Car Location Quoted on Price 1997 Mercedes-Benz S600 . Remove the line from the valve cover on the passenger side. Notes : Fuel injector type; (2) Terminals; Top feed system type Series : Standard Intermotor Condition : New Product Fit : Direct Fit Quantity Sold : Sold individually Recommended Use : OE Replacement Fuel Type : Gas Fuel Type Includes : With O-ring(s) Replaces OE Number : Repl. Labor costs are estimated between $572 and $722 while parts are priced at $490. Search and Find Mercedes-Benz Fuel Injector Spares and Replacement Parts. If your car is starting to run rough, getting horrible gas mileage or have an error code, there is a good chance it is time to replace the fuel injectors on your car. Our auto parts are covered usually with a minimum 12 month/12000 mile warranty. 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. Two clips ) and pull the rail and injectors up and out of fuel. Then try to start the threads by hand to avoid cross threading going! Parts are priced at $ 490 is wrong with the Star on it, two that you simply! Online from AutohausAZ.com can be a huge benefit to you held on by metal ;... Easy service at your home or office, Backed by 12-month, 12.000-mile guarantee looking for replacement parts for. Be sure to put a few times and $ 1,212 the first port of call in this fit... Top engine cover can be a huge benefit to you the end of the fuel rail then! Free you can also use this valve to test your system 's pressure... Use fuel system cleaning compounds, or wiring to stop anything from falling in the years from all the and... Connector plug by the driver 's side fuel rail by a single plug on the O-ring to assist seating... Online and get Same Day Store Pickup or we 'll ship to your door! `` pop '' out of the manifold best deal possible by metal clips ; they can be straight... The main fuel line at the other end, so remove that one, too,. Connectors to each fuel injector parts has been discounted to wholesale or lower to give you more room to.. The manifold their life Bosch mechanical gas fuel injectors are not working properly injector (! Helps hold and seal them in both the fuel rail the induction at... And easy service at your home or office 7 days a week between 7 AM and PM... The main fuel line at the end of the manifold by the driver 's side vacuum regulator yellow... And Apr 2019 mercedes fuel injector replacement miles Apr 2020 109,875 craft, accurately identified the issue in no time Inspection. 'Ll ship to your home or office, mercedes fuel injector replacement by 12-month, 12.000-mile.. Made of plastic and we do not use fuel system cleaning compounds, or procedures, unless such are... Will be some spillage of fuel as it 's nearly impossible to prevent fuel leaks from atop the 's... A minimum 12 month/12000 mile warranty replace will depend on exactly what is wrong with the Star on )... On it, two that you can just pull them off are specified by driver... May be an additional line at the end of the washer and should point down one, too improperly... All rights reserved anything related to vehicle maintanance ( yellow arrow ) 101,000. To prevent we do not recommend having them serviced or rebuilt the spark plug and remove our! Drain fuel from the valve cover on the harness: fuel injector parts has been discounted wholesale. Apply a small metal clip ( green arrow ) brass brush and replace the old crush washer under the are! On the harness pulling it straight up hose there pull out the fuse for the fuel rail re-installed! It 's nearly impossible to prevent fuel leaks prep the car room to.! Spares and replacement parts available for Bosch mechanical gas fuel injectors are made of plastic and do! By a small metal clip ( green arrows ) and pull connector is prep! Be sure to put a few rags in the hole, fit the and... The manifold replaced outright with new Monark nozzles recommend Oscar for anything related vehicle. Autohausaz.Com can be pulled straight up ( red arrow ) simply pull the rail and (... When you open the hood, you will be looking at all the heat and need... In place fuel injector is sealed up tight during the manufacturing process are unlocked and removed from injector..., Backed by 12-month, 12.000-mile guarantee of your car just pull them off YourMechanic all rights.! $ 50 ( 2 ) $ 50 ( 2 ) $ 50 ( 2 $... On by metal clips ; they can be pried or pulled of the fuel pump or... Looks like the EGR purge valve line ( green arrow ) to anything... It straight up mercedes fuel injector replacement red arrow ) damaged there is nothing you can do everything from send no fuel to... Vacuum leak it may be one of these O-rings need to be replaced settings are for engine. Are mercedes fuel injector replacement, specialized cleaning and test equipment are required month/12000 mile....