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Says that they replaced clamps not the line. Given that this may be happening on other cars I wonder what the real root cause is. Are these clamps failing? Where then not properly tightened to begin with?
Invoice documents replace fuel line assembly (asm). 1770707100 replaces original low pressure line 1770703400 (160 in diagram) that may indicate modification, 0069971890 (170) sealing clamp pictured and bracing clamp 0009953242 / 000000001146 (180/185) bolt remain.
I was just guessing that maybe it was just the clamps alone as I have not even seen in this area myself. According the the service manager at the dealer the metal line runs into a rubber line so must be something to do with this union would be my guess. I'm just really glad it seems to be fixed now. I popped open the trunk this morning to put my tennis gear into the trunk from the other car and no Gasoline smell at all after about a week I'll know for sure that it's fixed because it did not use to do it every time. I wish the dealer had caught this issue sooner but I can see how they missed it as it was mostly vapors being released from that line and especially in a garage environment that is kinda a tough one. They were good about things and covered the cost of the maintenance costs I had done which was a service A. I wish they would have thought more about the seat massager issue I have in that it runs one cycle and then stops working until the car is restarted, they claim as you can see on the work order that it is normal for the seat massager to time out, yes, that is normal but it should be able to be turned right back on again for another cycle, at least thats the way this car use to be and all my other Mercedes cars with a seat massager. This could be a issue on a long trip such as the one I have coming up soon. Plus after it times out and stops working you cannot make any seat adjustments to things such as Lumbar and sides and backrest. Not normal as they claim. But ya, I get it, they are really busy. I guess I'll just be stopping at more rest stops to turn the car off and open the door to turn off the retained accessory power so the seat massager will work for another cycle, Thats gonna get old pretty quickly though. You really don't expect this kinda thing from a $156K car.
Last edited by 2012 merc amg; 03-31-2021 at 01:02 PM.
Invoice documents replace fuel line assembly (asm). 1770707100 replaces original low pressure line 1770703400 (160 in diagram) that may indicate modification, 0069971890 (170) sealing clamp pictured and bracing clamp 0009953242 / 000000001146 (180/185) bolt remain.
Thanks for posting, in seeing that it makes me glad that Electric cars will soon be the norm, too much complexity and things to go wrong with cars these days. I still speculate that it's just a single clamp not applying enough pressure between the metal and rubber union that could be the cause, so somebody fixing this themselves might be a fairly simple and inexpensive fix, just put on a worm screw fuel line clamp which probably shoulda been used originally, I never liked the type of clamps as pictured, at least with a worm screw clamp you know it's tight. Those type of clamps pictured could easily not have enough spring loaded tension and leak IMO.
Invoice documents replace fuel line assembly (asm). 1770707100 replaces original low pressure line 1770703400 (160 in diagram) that may indicate modification, 0069971890 (170) sealing clamp pictured and bracing clamp 0009953242 / 000000001146 (180/185) bolt remain.
Thank you for the clarification. Again my ADD reading skills have failed me.
Thanks for posting, in seeing that it makes me glad that Electric cars will soon be the norm, too much complexity and things to go wrong with cars these days. I still speculate that it's just a single clamp not applying enough pressure between the metal and rubber union that could be the cause, so somebody fixing this themselves might be a fairly simple and inexpensive fix, just put on a worm screw fuel line clamp which probably shoulda been used originally, I never liked the type of clamps as pictured, at least with a worm screw clamp you know it's tight. Those type of clamps pictured could easily not have enough spring loaded tension and leak IMO.
This is and climate change impact is why I am headed that way. Think about all of the parts that a S560 requires to go down the road compared to a Tesla S. Looking forward to Mercedes EV's.
I was just guessing that maybe it was just the clamps alone as I have not even seen in this area myself. According the the service manager at the dealer the metal line runs into a rubber line so must be something to do with this union would be my guess. I'm just really glad it seems to be fixed now. I popped open the trunk this morning to put my tennis gear into the trunk from the other car and no Gasoline smell at all after about a week I'll know for sure that it's fixed because it did not use to do it every time. I wish the dealer had caught this issue sooner but I can see how they missed it as it was mostly vapors being released from that line and especially in a garage environment that is kinda a tough one. They were good about things and covered the cost of the maintenance costs I had done which was a service A. I wish they would have thought more about the seat massager issue I have in that it runs one cycle and then stops working until the car is restarted, they claim as you can see on the work order that it is normal for the seat massager to time out, yes, that is normal but it should be able to be turned right back on again for another cycle, at least thats the way this car use to be and all my other Mercedes cars with a seat massager. This could be a issue on a long trip such as the one I have coming up soon. Plus after it times out and stops working you cannot make any seat adjustments to things such as Lumbar and sides and backrest. Not normal as they claim. But ya, I get it, they are really busy. I guess I'll just be stopping at more rest stops to turn the car off and open the door to turn off the retained accessory power so the seat massager will work for another cycle, Thats gonna get old pretty quickly though. You really don't expect this kinda thing from a $156K car.
I am happy that this appears to have cured your issue.
Thanks, yes hopefully this car and my wagon will get me through around another 4 more years when the warrantees on both run out at which point I'll probably switch to a Mercedes EV. I don't think I'd ever go the Tesla route, I just don't like the interiors enough. Hopefully Bill D is all set too with his issue, sounded like pretty much the same issue I was having so good thing there is this thread for future people who have this same issue and I'm sure there will be. I dunno why the mechanic with Bill D thought it necessary to replace the whole fuel line all the way back if it appeared to be leaking at the clamp? Maybe they are just real busy or something and needed to have the car for longer before they got around to it.
#160 appears to be a hardline assembly with a flexible end... Unless the hardline was cracked or the compression nut leaking, looks like the short flexible section with the oetiker clamps could have been replaced (#170, #165, #175).
Assuming I'm seeing the diagram correctly... doesn't matter, its fixed.
EVs have a long way to go to achieve equivalent reliability vs ICE vehicles. Motor, battery and power electronics are expensive and complex.
The reliability of the first mainstream Mercedes EV after 100k miles will make some interesting reading on this site.
Does anyone on this thread that is looking forward to MB EVs own an MB beyond the factory warranty period, and without an extended warranty?
Yes. My 11 year old E Class has 137k miles on it. I bought and have owned it for nearly 5 years without warranty but won't claim that it has been painless given a failure of the transfer case (not exactly cutting edge technology).
I think that is correct to say that EV drivetrains have fewer part counts than ICE's and that should result in better reliability.
Will Mercedes EV's be unreliable? Hopefully their electronics engineering department is better than their drivetrain engineering department.
Yes. My 11 year old E Class has 137k miles on it. I bought and have owned it for nearly 5 years without warranty but won't claim that it has been painless given a failure of the transfer case (not exactly cutting edge technology).
I think that is correct to say that EV drivetrains have fewer part counts than ICE's and that should result in better reliability.
Will Mercedes EV's be unreliable? Hopefully their electronics engineering department is better than their drivetrain engineering department.
@MBNUT1 Will EVs really have fewer parts? It's easy to make a list of what EVs will not have - engine, transmission in the traditional sense, exhaust system, fuel system. But the systems that are added - motor, battery, control electronics, are complex and unproven in volume. I am interested to read owners' experiences after 100k miles driving EVs on extended long distance trips and through extended duration cold weather. Since the dawn of the auto industry, new technology has had bumpy introductions. I expect EVs to follow a similar path. Especially Mercedes EVs, with their far less than stellar brand reputation for reliability.
Hopefully this thread will help others that could have a similar problem in the future. Hopefully Bills car is out of the shop at this point, sounds like he was dealing with this issue for a long time as was I. It's a really nasty issue because fuel vapors are literally sprayed into the air and it is a very strong smell whenever the pump near the charcoal canister kicks on in the back of the car. So far everything as far as this issue goes with the car seems normal.
I got my car back today!!! It’s been 29 days. MB gave me a GLA250 as a loaner. Not too bad but it does make me appreciate my car even more.
Here is what I learned today:
1. The gas leak was real and not my imagination.
2. The tech (shop foreman in this case) was able to reproduce AND video the gas leak. He showed me the video and you could see the gas dripping. He sent me a still picture of the defective part which I have attached below. If you pull off the plastic engine cover, you can easily spot this part.
3. His tech support team told him to look for the problem on a cold start. He did and it did leak but not every time.
4. The leak was the rubber hose - or it’s connection to the metal pipe (I don’t know which). The tech went to order another rubber hose and the part number was blocked in the system. He was required to create a (PTSS) case number and submit that to his tech support. They required him to order and replace the entire low pressure gas line on BOTH sides. They also wanted the entire gas line back in “one piece” to try to find out what went wrong.
5. It took a little less than 2 days to do the actual work and test the car once the parts came in.
6. The tech had seen this once before (on anotherS-Class) - within the last year. At that time, he was able (allowed) to replace just the rubber hose.
7. The tech’s write up is detailed on the work order/invoice - which I have attached below. There was a little cut and paste to get it to fit in one image.
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@dawson1331 good news that you have your car back, and it's fixed. Thanks for posting the service invoice and photo, excellent information for others in the future.
Glad it's fixed and you have your car back but it seems kinda crazy how long they had the car and that they had to replace the entire fuel line all the way back for what was probably just a bad hose clamp as in the picture. I think that's what it was with my car too. I'd think something like that could have been replaced in a few minutes. My car has been fine ever since having this clamp replaced.
For the last several months, my 2019 S560, has occasionally given off a very strong gas smell. It happens once or twice a week. The problem was not reproduced at MB Service. I left it there for several days at a time - twice. They could not find anything and eventually wanted their loaners back. In addition to a bad smell, I worry that this could be dangerous. Any ideas are welcomed - no matter how crazy!
Here are two typical scenarios:
1. Car parked in garage, not driven since yesterday noon. Leave the house through the garage vehicle door for a two hour walk at 2pm. No smell. Get back a little before 4pm. Strong smell in garage. Seems to be strongest in engine compartment passenger side but hard to tell. Maybe twice a week since November.
2. DrIve car in morning short distance (less than 1/2 mile). Stop at traffic light or final destination. Twice gas smell strong in car - windows rolled up. Two other times walked around car in parking lot - strong gas smell. If I continue to drive smell goes away. Only noticed this 4 times since November.
More info:
There is no gas on garage floor underneath the car or otherwise.
No other gas sources in garage, except 2017 SLC43. Ruled that out.
Seems to happen most on Thursdays.
Seems to happen most between 3:30pm - 5pm.
Seems to happen most on sunny days where the temperature increases in the afternoon. So not necessarily the absolute temperature but a change in temperature.
Also seems to happen more often on windy days.
Smell lasts an hour or so.
Smells like an ounce or two of gas was spilled. Very strong - no question it is gas.
Not a function of gas tank fuel level. Happens at full tank and 1/2 tank. Originally MB said I over fill the tank when refueling but that has been ruled out.
During pandemic, I refuel about once every 3 or 4 weeks.
I have been keeping a log since March. Date and time, temperature in garage, weather conditions, gas tank level, etc.
Three car attached garage, with two cars and storage space. Garage vehicle door faces west (sunny side).
I am technical but not a mechanic. I do not work on cars.
Thanks,
Bill D.
Bill
I own an S560 with the same problem. If you pop the hood you can smell it from the injector area. it also comes through the air conditioning! Taking it in tomorrow for a looksee, GP
Got the same gas smell occurring on my car. Parked in the garage - fumes are bad. Under the hood, injector area smells like gas! Driving it comes through the air conditioning - not good!
Funny this should come up again today as I notice the same smell again coming from my S560 in my garage and when you take a wiff near the hood and fender seam you can smell it really strong.
2015 White/brown Nappa S550, '13 S550 4 matic, 11 S550 sold, '10 S550 Sports BLACK 08 S550 P3 sport
Originally Posted by smooth ride
Got the same gas smell occurring on my car. Parked in the garage - fumes are bad. Under the hood, injector area smells like gas! Driving it comes through the air conditioning - not good!
Please advise -
G
same problems with me. But got worse. When I floored the gas pedal the car goes into limp mode with check engine light on. Restart the car and it’s normal again. Depress the pedal hard and limp mode with misfire. Check to see if that happens to you guys also.
same problems with me. But got worse. When I floored the gas pedal the car goes into limp mode with check engine light on. Restart the car and it’s normal again. Depress the pedal hard and limp mode with misfire. Check to see if that happens to you guys also.
That sounds like a different issue other than this low pressure fuel line clamp issue. Maybe a injector issue or something? I'm thinking about just putting a regular gas station style screw clamp on my car. I think it's these clamps as in the picture above that are defective. Such a simple issue, such major problems. Sometimes I think I'd be better off with a Genesis G90.
I don't think there is enough vapor in the air for this to happen, I guess if it was gonna happen it woulda happened already unless I get the car back from the dealer and the issue is still there and it gets worse.
I'm having similar issue right now with my w207 but was wondering how you can judge what amount of fuel vapor in the air is acceptable vs hazardous.
03-31-2021, 12:16 PM
