Question about 1994 BMW 8 Series

1 Answer

Bmw 850 csi hyd problem

A mech. accidentally put chf7.1 in the 11s hyd. sys.. The brake booster is leaking and the fluid has turned black, most likely from the bladder in the accumulator disolving. What other parts in the brake/steering systems are damaged and what is the fix?

Posted by on

  • Clair Oppriecht Jun 09, 2008

    sweet rascal, I've contacted ATE in Germany along with Pentosin, the manuf. of the brake components and hyd fluid. Pentosin tested my fluid for me to confirm my suspicion that it is mixed, and ATE told me that 7.1 fluid would damage the seals in the brake booster.
    The shop that did the damage has ageed to replace the booster and accumulator, flush every thing else and reservice with correct fluid. They don't want to involve tech service, so I have no assurance that I won't have problems with the steering/ hoses etc.

  • Anonymous Mar 31, 2014

    Accidentally put coolant int the screenwash tank in my bmw, can it damage my screenwash system and how do i drain it?

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Guru:

    An expert who has written 7 tips or uploaded 3 video tips

  • Master
  • 1,894 Answers

Replace is the only fix

Posted on Jun 09, 2008

  • dewan nafees ahmed Jun 09, 2008

    you will have to refill the fluid of accumulator.

    no other parts will be broke i think sir


  • dewan nafees ahmed Jun 09, 2008

    dont worry sir there wont be any problem.
    but make sure that he s giving you the right fluid next time.

    dont worry


×

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

I have a 98 Chevy Blazer it was leaking brake fluid for a long time but I couldn't find where it was leaking from I was putting brake fluid in the reservoir one to two times a week ed ball of a sudden I'm...


Hi,if you don't see the fluid leaking anywhere externally than it is filling up the brake booster the master cylinder is attached to. look for seepage evidence under the master cylinder where it attaches to the booster. hope this helps

Jun 15, 2014 | Cars & Trucks

1 Answer

How to tell is the brake booster is bad in a 1986 dodge D100


This is a standard Vacuum operated brake booster.. If you are having fluid leaking at the rod that attaches the brake pedal to the booster it is a bad Master Cylinder. The Brake fluid will eventually destroy the diaphram in the booster if it hasn't already. . Replace or rebuild the Master Cylinder and wash the brake fluid out of the booster. When the booster goes bad the brake pedal will become very hard to push.. because you will have lost "boost" This is not really a hard job. If fluid id leaking somewhere else.it should be very easy to spot.. Brake fluid looks like oil leaking..

May 13, 2014 | 2005 Cadillac STS

2 Answers

Can you brake booster make you engine smoke


Sounds like some brake fluid has leaked down on your exhaust manifold and is smoking.

Apr 29, 2014 | 2002 Toyota Tundra

1 Answer

Brakes stopped working on 90 cougar


chec condition an level of fluid--the booster behind the fluid resevoir may have failed-leaking--bettr go to a brake mech to be safe--inspec for any loose hoses etc

Jul 20, 2013 | 1990 Mercury Cougar

2 Answers

Losing brake fluid with no leak


It's a sealed system, so it's got to be going somewhere, leaking somewhere (or boiling off from severe braking operations over and over). Since you likely haven't experienced extreme braking, it must be leaking somewhere.
You will have to trace all your brake lines from the master cylinder to each wheel to check for any sign of leaking. Front calipers are easy to spot leaks when they leak. If you have drum brakes on the rear, you may need to pull off the drum to check the wheel brake cylinders. Peel back the rubber boot on each end of the wheel cylinder and look for any fluid leaks there.
Another place to check is at the back of the master cylinder. If a seal is bad there, it has been known to leak fluid inside the car, under the dash. Feel around the carpet under and behind the brake pedal for any wetness. If you find brake fluid there, you will need the master cylinder replaced or rebuilt.
Hope you find the problem. Don't forget to check the ABS system and brake lines, too.

Mar 28, 2012 | 2008 Pontiac Grand Prix

1 Answer

2003 Corolla brake fluid leak. Brake pads are new and there is no evidence of leak on ground. However, the brake fluid light comes on occasionally indicating low fluid. Sure enough, the fluid is low. Any...


If there is no visible leaking at the wheels around the braking assembly's, then the fluid will be leaking out he back of the blake master cylinder into the vacuum booster. The master cylinder is where you have been topping up the brake fluid and the booster is the big black thing the master cylinder is bolted to. You need to have this looked at by a mechanic for proper repair (unless you really trust someone),as brakes are something I think are important to a vehicles operation.

Just as a note, there is no need to buy a new master cylinder, as most brake places would have exchange units available.

Jul 10, 2011 | Toyota Corolla Cars & Trucks

4 Answers

I have 94 volkswagen jetta 3 breaks go to the floor they have very little stopping power...


First off.. STOP DRIVING IT. Check brake fluid level. I highly suspect a leak and you need to have someone look at ASAP before you get into an accident.

Mar 01, 2011 | 1994 Volkswagen Jetta

1 Answer

Experienceing loss of power to brakes


1. What is the Brake Fluid Level?
2. Are you losing any Brake fluid at all? Are there any puddles or noticeable wetness on the ground or on the tires/wheels? With vehicle parked, the reservoir filled (overfilled), and engine running: pump the brakes and check on the ground and back sides (inside portions) of the wheels. Look for any brake fluid leaks.
3. Leaks from Calipers usually means a leak from the caliper piston. The rubber seals will be wet.
Leaks from Drums usually means a leak from the wheel cylinder.
4. In any case of leaks from the wheels - replace the calliper OR wheel cylinder.
For caliper leaks: change the brake pads, and clean the rotors with brake cleaner.
For drum leaks: clean the drum and brake hardware with brake cleaner, and replace the shoes.
5. If no leak is detected from the wheel area's: check under the Master Cylinder for wetness indicating a possible leak.
6. If no leak can be found: you MAY have a rear seal leak in the Master Cylinder which is pumping Brake Fluid into the Brake Booster (that large disk looking thing attached to the fire wall, attached to the Master Cylinder in front).
a. Use a large drip/catch pan under the Van in the area on the Master Cylinder.
b. Disconnect the brake lines from the Master Cylinder using a flair wrench.
c. Remove the two nuts (12 or 13mm?) attaching the Master Cylinder to the Brake Booster. If you have been using a lot of fluid, and have found no leaks, here is a good possibilty that all that brake fluid has collected in the Booster; so when you detach the Master Cylinder from the Brake Booster, all that fluid will come rushing out!
7. If there is Brake Fluid inside the Brake Booster: there is no cleaning that out. Brake Fluid is very caustic to the seals inside the Booster and should be replaced.
8. Of course the Master Cylinder will also have to be replaced.
9. After replacing the Master Cylinder/Brake Booster - make sure you get all that spilled brake fluid off the engine compartment area parts! I use a brake cleaner, then mild soap and then water to rinse. Clean any Brake Fluid off Paint imediatley as it will quickly dissolves finishes and paint.
10. If no leak is detected and the Booster is clear, there may be problems with the Booster One-Way Valve. This is attached to the outside of the Booster and has a hose from an "advance" connected to it. This maybe malfunctioning where you are losing power. Replace this first before deciding to replace the whole booster (in cases of NON-LEAKS ONLY). If that did not work, there may be inner seals inside the Booster that have failed. That means a new Booster.
11. In any of the above cases: Make sure you bleed the Master Cylinder correctly and bleed the brakes (at each affected wheel) correctly. Any air in the brake lines will decrease your braking proficiency or could result in brake failure.

Let me know if this helped or if you have any additional information or questions. Feel free to contact me at FixYa.com!

Dec 10, 2009 | 1999 Dodge Caravan

1 Answer

WHERETO FIND THE COMPUTER BOX OF Z3 1998 MODEL


Driver's side, under the hood, next to the firewall. It is where most vehicles put their brake booster and power steering fluid. Big black box. You will see the fuses inside.

Sep 30, 2009 | 1997 BMW Z3 Roadster

Not finding what you are looking for?
1994 BMW 8 Series Logo

Related Topics:

140 people viewed this question

Ask a Question

Usually answered in minutes!

Top BMW Experts

Fred Sops

Level 2 Expert

271 Answers

Al Clark

Level 2 Expert

290 Answers

Doberman

Level 2 Expert

246 Answers

Are you a BMW Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...