Question about 1992 Mercedes-Benz Mercedes Benz 400 Class

1 Answer

1992 mercedes 400-se excessive vaccum inside tank

1992 mercedes 400-se excessive build up of vaccum inside tank . it does not maintain the right press . you can observe how the tank collapse. fuel tank cap is hard to remove due to the excessive vaccum also after 2 minutes running you can hear a noise coming from the tank this is the sound when the tank begin to collapse and finally you can noticed a wrong lecture at the fuel gauge (4 example if you positive have 1/2 tank the reading move to full indication) What about canister purge, the thermo valve etc..?
thanks for any help

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 1,185 Answers

All gas tanks have a breather fitted to them

Some are in the form of a pipe on the top of the tank

Others are via a hole in the filler cap

Unless you have fitted a new cap then the second one is out of the window

Because of the nature of the beast you willed to get a strong light and look at the top of the fuel tank to see if the outlet has been blocked by rust or road dirt

Posted on Mar 19, 2010


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

The sliding roof won't slide...motor sounds like it's working ..but roof won't move

broken cable by the sound of that -you can however check it by using the manual winder inside the boot/trunk usually on the left -european cars right in american models

Jan 22, 2014 | 1992 Mercedes-Benz Mercedes Benz 400 Class

1 Answer

I have a 1992 mercedes 300 se the ASR LIGHT GOES ON

Cable binding, do not press gas when starting, speed sensor on the wheel could have failed or be dirty, ASR module could be bad, upper engine wiring harness could be failing. Go to benzworld dot org or peachparts dot com for more specific help and guides.

Jun 18, 2010 | 1992 Mercedes-Benz Mercedes Benz S Class

1 Answer

What is the fuel pressure specs for a 1992 merc.benz 400 se 4.2l

At the fuel rail 60 psi at start up 40 psi when running is minimum. But remember that the fuel pressure regulator, fuel filter and fuel pumps can all effect this pressure.

Jun 08, 2010 | 1992 Mercedes-Benz Mercedes Benz 400 Class

1 Answer

I need to buy front signal light, passenger side, for 1992 400 SE. Where can I get a used or cheapest possible?

Find one at your local junkyard, or a remote junkyard that will ship. Visit
Enter your year, make, model, what you are looking for, and your zip code. Find one close by and go pick it up. Or find one cheap and call them to have it shipped.

Dec 19, 2009 | 1992 Mercedes-Benz Mercedes Benz 400 Class

1 Answer

400 E transmission tranny is slipping?

Check the fluid level. Make sure the engine is warm and engine is idling. If the fluid level is fine then try changing the fluid and the transmission filter. *Note: if you take it in don't let them give you any Jazz about metal shavings in the fluid. It's a scam. Metal shavings in the bottom of the pan is normal tranny wear. Tell them to just changed the filter and fluid and be on your way. Hopefully that should correct the problem.

Jul 13, 2009 | 1992 Mercedes-Benz Mercedes Benz 400 Class

3 Answers


There is an in tank fuel screen where the fuel feed line screws into the bottom of the fuel tank. The is also a convertional fuel filter which is located just in front of the rear wheel on left or right side depending on model. I have a wagon and mine is on the right side. There is a plastic panel that you need to remove with a 10mm socket and a long extention. There are three screws to remove before you can get to the fuel pump/fuel filter area.

May 28, 2009 | 1992 Mercedes-Benz Mercedes Benz 300 Class

1 Answer


hello,it"s hard to tell,maybe visual check in your hood or trunk mounting if there is a loose welding or crank in body,or lift your car,visual check on rear suspension bushing,rear wheel bearing,propeller shaft bearing,ty

Apr 19, 2009 | 1992 Mercedes-Benz Mercedes Benz 400 Class

1 Answer

I need a 1992 mercedes 400 se sparkplug wiring diagram

most older mercedes benz firing orders are written on valve cover. I beleive it will tell you on one of the rear intake manifold runners. the way a benz engine cylinders are marked they read-1 2 3 4 on the l(passanger side) and 5 6 7 8 on the r(drivers side) unstead of 1 3 5 7 and 2 4 6 8. maybe this will help you good luck getting the plug sires back into the plastic troughs.

Apr 12, 2009 | 1992 Mercedes-Benz Mercedes Benz S Class

1 Answer

Need Help

sent your to the nearest dealer for proper diagnose,gas flap can open manually inside trunk,use mechanical key to open the trunk.

Jan 16, 2009 | 1992 Lexus Ls 400

1 Answer

1992 Mercedes-Benz Mercedes Benz 400... Problem:

Hello, What you could have is and ignition problem. I have had to replace many distributor caps (2) and rotor buttons (2) on this model to solve this same problem.
I hope this helps.
CYA, Gtaor241

Oct 15, 2008 | 1992 Mercedes-Benz Mercedes Benz 400 Class

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

126 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mercedes-Benz Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers


Level 3 Expert

76070 Answers

Michael Contreras
Michael Contreras

Level 2 Expert

166 Answers

Are you a Mercedes-Benz Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides