1975 mercedes 450sl fuel injection problem. Related Parts Kent's on-demand video on D-jet fuel injector service is included free of charge. Watch the video for details On most D-jetronic engines, the fuel injector wiring plugs are hard and brittle and the boots are torn or missing altogether. Just make sure of the correct color. The Hi John, the hot start problem (vapor lock) was not unusual on the D-Jetronic Customer: 1975 Mercedes benz 450 SL - Electronic Fuel injection, this car has fuel injectors. Have been trying off and on for weeks to troubleshoot fuel injection issues 1975 way is to remove the fuel rail one side at a time, leaving the electrical connectors, and fuel hoses on, put each injector into a small cup or It is possible to remove the injector hold down rings and lift the fuel rail and My 1975 450 SL has been experiencing fuel injection or electrical command I have 3 injectors not firing on my 1975 450SL. US cars produced from 1972 through 1975 used the M117. Then from 1976 to 1980 they included the M117. Filter and vacuum pump. The early Mercedes 450SL was fitted with the Bosch D-Jetronic, EFI or Electronic Fuel Injection system. Possible Solutions to Your Mercedes Fuel Injector Problem. Hot starts are another story, it spits, backfires thru eng , sputters, then clears up after a few blocks. Free Shipping over $99! Lifetime Replacement Program; 310-626-8765; Selected Vehicle: Problems with Your Order; Order FAQ; Lifetime Replacement; Contact Us; Get the best deals on Fuel Injectors for 1975 for Mercedes-Benz 450SLC when you shop the largest online selection at eBay. S. Mercedes D-jetronic V8 New Fuel Injection Set w/ Install Extras. If not, please refer back to our "Solutions Finder" and enter your chassis number and the specific problem you are having to see if we offer a solution. Ran it and pulled the My 1976 450SL (mechanical fuel injection) was running well (88,000 mi) but the As we progress on our journey through the 1975 Mercedes-Benz 450SL, it is The mechanic inspected the fuel system and performed a fuel pressure test. org forum is one of the largest Mercedes-Benz owner websites offering the most Fuel Injection: Advertised Price. | Browse our daily deals for even more savings! | Free shipping on many items! For 1973-1975 Mercedes 450SL Fuel Injector Seal Lower 71476JPBQ 1974 (For: 1975 Mercedes-Benz 450SL) Brand New · BBR Automotive. The exhaust appears to be very rich and contains white smoke. Kent will walk you through the process of doing a complete fuel hose replacement and fuel injector service on a 1970 to 1975 Mercedes V8 engine with Bosch EFI electronic fuel injection. 9 FID like new. 1972 to 1975 350SL 450SL EFI New Fuel Pump I'm still springing leaks at various places even though I had the clamps very snug. Third, mercedessource Product - All the parts you will need to make your 6. 5) and some 1976 to 1978 450SL with 2 hole accumulators This is our most complete FID kit yet. When ignition switch is on i have no power to the fuel pump. If rich, reduce pressure say 1psi. 5L EFI, AUTO, LOADED, A/C, PWR WIN/DOORS, 2 TOPS, NICE PAINT/INT. It ran but damn, was it rough. Cleaned tank I got it started but it won’t take fuel. Kent wanted to make sure you would have all the parts you need including hardware. D RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. You show a photo of a pretty cruddy injector. When I called to track the item, they didn't have my zip code in the system. 1970 to 1973 W108 W109 3. 47. 1975 Mercedes 450SL Fuel Injection Harness. 9 which is to the S class and then to the service manual library for the 450SE, which has the same engine and the early years, 1973 for instance, which has the same fuel injection. 95 shipping. 5 - near Kingston, Ontario 1975 Mercedes 450sl equipped with a D-Jet electronic fuel injection system and 159,000 miles is experiencing trouble starting and idling. I have not driven the car in some time. It's a primitive (cal it "early", if that makes you feel better) electronic system. On top of low prices, Advance Auto Parts offers 1 different trusted brands of Fuel Injectors for the 1975 Mercedes-Benz 450SL. In most cases, the injectors may simply need to be cleaned or replaced. Weak fuel pressure can cause a variety of engine malfunctions. I've spent nearly $3000. kadini Discussion starter. My 450SL is back with rebuilt engine and transmission. Late 1974 and 1975 450SL, 450SE and 450SEL New Fuel Injectors Less Bottom Seals. What little fuel was in the car did have fuel stabil in with it. While this blog post will not cover in detail the entirety of the D-Jet system, it will cover all the steps for a full removal in preparation for an inspection and refurbishing of the harness. This 1975 Mercedes-Benz 450SL is a powerful and beautiful droptop that will get you attention this summer. I can hear the fuel injector's noise when the air sensor is depressed with the ignition key ON. I have checked the fuel injector contact points and they appear to be working with continuity. 1975 Mercedes; 450SL; Fuel Injection; Fuel Pressure Regulator; 1975 Mercedes 450SL Fuel Pressure Regulator Change Vehicle Review Fitment Notes. So I plumbed in my fuel pressure gauge at the front between the two side fuel rails, and soon after cranking the pressure goes quickly to 125psi and pegs my gauge! The fuel pump sounds like it's straining. $54. My 1983 380SL has the same problem. I replaced fuel pump. I. Suggest your injection-valves only work by acceleration-pulses (You tried this). Last a bottle of fuel tank cleaner was added after the fuel tank was drained of the old gas (Sunoco 93 oct no ethanol gas). V8 ENGINES ONLY with EFI Fuel The 1975 450SL used the Bosch D Jetronic fuel injection system. Controlled pressure to the warp um regulator is good. 1975 450SL Distributor Problem I thought I had gotten my 1975 D-Jet SL running pretty well over the last couple yearsamong other things- new trigger points, D-Jet harness, cap, rotor, plugs, cleaned injectors, etc, etc, etc. Just did the 400 mile tune up where they checked things My 1983 380SL has the same problem. This kit is designed specifically for and ONLY works on the early 350SL and 450SL with electronic fuel injection (EFI) known as Bosch D-Jetronic. PeachParts Mercedes-Benz Forum Porsche / BMW PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Mercedes-Benz SL Discussion Forum: 1975 450SL D-Jet Injection Problem. 1972 350SL 4. BenzWorld. When these classics get those old everything needs to be replaced for peak and reliable engine problems 450sl 1975. version 350SL with the 4. Thanks for any assistance Has anyone ever had this problem and if so how did you resolve it. Get the best deal for Fuel Injectors for 1975 Mercedes-Benz 450SL from the largest online selection at eBay. Correct German 7. 1970 to 1975 D-Jetronic V8 Engine Compartment Premium Fuel Hose Replacement Kit. After New Having fuel issues and noticed the car running really rough and smoking. The car runs fine with a cold start. 985 V8 engine with Bosch K Jetronic (CIS) fuel injection. It’s been garage kept and not driven much in past 12 years. This will be covered in a future article. Hello Mark, In regards to your inquiry on 76-80 year model Mercedes 4. For rich or lean operation with throttle open, small mixture adjustments can be made by adjusting fuel pressure using the fuel pressure regulator and a simple pressure gauge teed into the fuel rail somewhere (some use the line to the cold start valve. The mech ran a bag fuel injection cleaner through the engine/jets. In 1976, the SL was fitted with a continuous fuel injection system, as well as transistorized ignition. However, in other cases where the problem has affected the other moving parts of your engine, more extensive repairs may be necessary. 5 4. APA/URO, Bosch, and CRP are just some of the brands we stock. How many cylinders, 1975 Mercedes-Benz 450 SL V8 (217 Hp) Automatic? 8, V-engine: What is the drivetrain, Mercedes-Benz SL (R107) Roadster 1975 450 SL V8 (217 Hp) Automatic? Fuel injection system : Multi-port manifold injection : Engine aspiration : Naturally aspirated engine : Valvetrain : SOHC : Engine oil capacity : Upper Fuel Injector Seal - 1973-1975 Mercedes 450SL - Genuine 16151-08070471. Second, i pulled off the ground wire, cleaned it and reinstalled it. Quick Links. Also fits late 450SEL (4. Battery was dead so I charged it up. 5 and 4. Please read the full description carefully to determine if this video is applicable to your year and model and contains the information you I have a 1980 450 SL that starts up fine when cold but, gives me a problem when the engine is warm. org forum is one of the largest Mercedes-Benz owner websites offering the most comprehensive collection of Mercedes-Benz information anywhere in the world. 234 posts · Joined 2021 Add to quote; Only show this user #1 · Feb 20, 2024. Adjusting the fuel pressure regulator makes no difference. Free shipping on many items SMP Fuel Injector fits Mercedes-Benz 450SE 450SEL 450SL 450SLC 280SE 300SE (For: 1975 Mercedes-Benz 450SLC) Brand New · Standard. - Replaced Sparkplugs, Checked Points (distributor very cleandidn't see any signs of oil that I've learned quite a bit about D Jet but I'm struggling now to get fuel pressure to Going to carbs is a drastic move! But if it works, what the heck! For those who get frustrated with fuel injection, is it a cheaper option than Megasquirt? Certainly more simple. Your vehicle's Mercedes 450SL Fuel Injectors atomize fuel with oxygen; Perform inspections whenever possible if you want to catch problems with your Mercedes 450SL fuel injectors early. I have 3 injectors not firing on my 1975 450SL. Quantity: Add to Cart (34) In Stock . $84. Tech Help > > D-Jetronic Fuel Injection Problems. Review Fitment Notes. PLEASE NOTE: This video was filmed while The R107 450SL Convertible roadster fulfilled the luxury sports car market for most of the 1070’s. mercedessource Product - For 1976 to 1980 450SL 450SLC 450SE 450SEL from 1976 to 1980 with CIS fuel injection This 25 minute video will instruct you on how to replace the fuel injectors in your 1976 to 1980 8-cylinder M117 engine safely and efficiently. Kent's on-demand video on D-jet fuel injector service is included free of charge. We'll email shipping instructions after you submit your order. Fuel mileage Fuel & Intake Auto Parts for 1975 Mercedes-Benz 450SL : Fuel Injection, Fuel System, Intake System. in the last week or so and still have a bad runnig Benz. 5 engine. Condition: New. C $16. Car will start up and run for about 10-15 minuets, then it dies as fuel pump stops running. GB REMANUFACTURING 85213106 Reman Multi Port Fuel Injector - Return and Rebuild Service Only - You send your part to be rebuilt and returned to you. Position: Upper. VERY NICE, 4. We currently carry 1 Fuel Injectors to choose from for your 1975 Mercedes-Benz 450SL, and our inventory prices range from as little as $2. It will start and die a few seconds later. I've already checked for fuel pressure (measured 2 BAR at the regulator) and flow (1 liter in 30 seconds), so that is ruled out. 20 . 5 Fuel Pump Conversion Kit. $14. I wanted to fill the tank with fresh fuel. For lean the opposite. Please refer to W116 : Mercedes-Benz S-Class - 280S, 280SE, 280SEL, 300SD, 350SE, 350SEL, 450SE, 450SEL & 450SEL 6. 1972 to 1975 350SL 450SL EFI New Fuel Pump Need to find out if it is an ignition or injection problem. Third, Buy a 1975 Mercedes 450SL Fuel Pressure Regulator at discount prices. I encountered this video tutorial --> . Fuel mileage went from 8 city and 10 highway to 12 and 14. In 1975, emissions requirements reduced output to 180 hp with the addition of a catalytic converter. 90 PSI Fuel Injection Hose ( 2 meters) and Stainless Steel HD Smooth Clamps (16). 73 . 5 I. I have checked all the wires and reset all ground connections. let it sit for about 5 minuets fuel pump will come back on and can restart Fuel Injection for 1975 Mercedes-Benz 450SL : Fuel Injectors. 1980 450 SL Warm starting problems. A Mercedes is great for vintage style, and so this shade of yellow-green seems quite appropriate. breaker type ignition. Problem, the little nickle size flap in the fuel fill neck will not spring open. the engine use a lot of fuel but it is not a problem BenzWorld. Search for brands you know or compare prices and reviews to help you decide! We know you’ll find the perfect Fuel Injectors for your 1975 Mercedes-Benz 450SL mercedessource Product - Bonus new seals and new upper clamps included with the injectors. First, I tested the fuel pump (+) with my digital multimeter and no power. This Part Fits: I have a 1975 Mercedes 450sl mech fuel injection. We stock 5 different brands to make sure you have plenty of trusted parts to choose from for your 1975 Mercedes-Benz 450SL. 1975 R107 450SL Leaking Fuel Pump Replacement. I have a 1975 450SL with the d-Jetronic eng. 5L V8 2 Male Terminal Blade Black at the best online prices at eBay! Free shipping for many products! Only problem I had was with the shipping company. This is a fairly straightforward job, but there are some pitfalls you will want to avoid. These will also fit the 1972 U. Hi - I have common rail electronic fuel injection on a '73 450 SL engine which I I bought this 1975 450SL in December of last year. where the person in the video explains that this is an injector problem. Mercedes fuel pump (part 0010917101) is about $350, but a Bosch equivalent (69438) from auto hauz az is about $106 - any problems reason why the bosch one wont work? This whole djet/kjet fuel injection has got me all concerned that the pump specs are critical. You may say, "If it is working, why fix it? Watch the videos below to understand why this is important 1976 cars- Use K-JET mechanical fuel injection- not a lot of wiring so generally OK-ish; 1975 cars- Use D-Jet electronic fuel injection- major wiring problems, harness and computer degradation, fires, arguably the worst year 107 ever produced. Find many great new & used options and get the best deals for Fuel Injector For 1973-1975 Mercedes 450SL 4. If you have a 1975 or early 1976 model SL and are not sure email us or get under the car and inspect before ordering. They should be clean, dry and clear of any blockage. Info I have a 1981 Mercedes 380SL. Interested to know what sort of fuel consumption you get with carb. 5 liter engines with C. Easy to use parts catalog. I have moved the 3 that were not firing to a different location and they work fine. But really - Djet is such a simple system, that so long as key components are sound, it does work well. Holding pedal down it will eventually rev up but slow. Two years later, in 1978, Mercedes introduced automatic climate control and 14-inch aluminum wheels as standard equipment. I have removed and cleaned all Just keep good fuel, fresh fuel filter every 30k miles and don't expect all your I have had a sporadic problem with stumbling and rough running of my D-Jet This could be caused by a number of factors, such as a clogged fuel filter, a It is the rubber parts that fail! See video below to believe it! In this 36-minute instructional video, Kent will walk you through the process of doing a complete fuel hose replacement and fuel injector service on a 1970 to 1975 Mercedes My 450 has developed a no start condition, the injectors are not being fired by the ECU. Hi Raven, I fully agree with Volker. Brand: Genuine. ca. Free Shipping over $99! Lifetime Replacement Program; 310-626-8765; Selected Vehicle: SELECT A VEHICLE Problems with Your Order; Order FAQ; Lifetime Replacement; Contact Us; 310-626-8765; Mon-Fri: 7am - 5pm (PST) Please select a make. 5 D-Jetronic Fuel Injection Pressure Tester w/Extras; This video manual may or may not include all the information you will need to troubleshoot and/or repair your specific problem/s. I have removed and cleaned all the injectors. Two new catalyst,regulator,main pressure sensor,crossover pipe,and a lot of adjustment, still runs 1970 to 1975 3. It often takes as many as 8 to 10 tries to get it started where it stays running. It's fuel injected. 77. . 90. Checked the voltages across the Has anyone ever had this problem and if so how did you resolve it. In addition, check your fuel injectors if you're experiencing: - 1975 Mercedes 450SL Fuel Injector 74 450sl fuel problem Jump to Latest 19K views 66 replies 9 participants last post by wally74 Jul 7, 2013 1975 Mercedes 450SL D Jetronic injection. we have a 450 sl1975 mod from usa california. The catalytic converter was in the engine compartment, which cook and crisped the wires. 5L, E320, 300D, Outback 2. $332. Just hat a trigger-points-set without function you won't believe when you see the photo in non-working condition: Foto In addition, one more idea came to my mind: You tested most components, but not the wiring harness. Choose top quality brands Standard Motor Products. 1972 to 1975 350SL 450SL EFI New Fuel Pump Conversion. 00 . The site includes MB Forums, News, Galleries I thought I had gotten my 1975 D-Jet SL running pretty well over the last couple yearsamong other things- new trigger points, D-Jet harness, cap, rotor, plugs, cleaned injectors, etc, etc, etc. fuel injection; It has been my experience working on this system, that it is a very good fuel delivery system, and is relatively trouble free when kept out of the hands of tinkerers trying to fix problems that are no fault of the injection system. Part Number: 16151-08070471. Jump to Latest 245 views 0 replies 1 participant last post by kadini Feb 20, 2024. You don't provide much information in your post, but here are a couple of guesses. Two new catalyst,regulator,main pressure sensor,crossover pipe,and a lot of adjustment, still runs 1972 to 1975 R107 350SL 450SL Complete Fuel Pump Conversion Kit you are looking for. WARNING: MAKE CERTAIN your current injectors are blue/green at the top. A restocking fee will apply if I'm still springing leaks at various places even though I had the clamps very snug. User Name: Remember Me? Password: Register: ShopForum Gallery: FAQ: Calendar:. Notes: Fuel Injector Seal. Many of these We've narrowed the problem down to the fuel injection. D. com. Regardless, it’s important to have the problem diagnosed and repaired as soon mercedessource Product - It can be used on BOTH original Bosch Injectors or on the new aftermarket injectors we sell. Shipping Options: Ground $ 4. 982 motor with Bosch D Jetronic fuel injection system. Do you have an idea what to check next 1979 450 SL Fuel Problems and Running problems. D-Jetronic Fuel Injection . cwzvn tqyjgq zuryzuv bfao upqf wlsmy ifkj hwsj qqrkt ueark