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BRAKE FLUID & a ton of other stuff according to BMW


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for the YOUNG ONES - and a refresher for

old pfharts

Brake fluid, (glycol-based) as used in BMW brake systems, must conform with the following requirements:

— High boiling point

— Good low temperature resistance

— Low compressibility

— Corrosion inhibition for all metal parts inside of brake system

— Compatibility with all rubber parts used in brake system

These requirements are fulfilled by reputable brand name DOT 4 brake fluids.

Silicone-based brake fluid has better compressibility, but because

it cannot absorb moisture, is subject to vapor lock

attemperatures above 212°F/ 100°C. At lower temperatures, it

may even ice-up. Silicone-based brake fluid is not approved by BMW.

Glycol-based brake fluid absorbs moisture from the atmosphere (hygroscopicity) through the brake fluid reservoir, brake

hoses, etc. This absorption of water lowers the original boiling

point of brake fluid and active safety of the entire system.

If there is extended use of the brakes while driving downhill at high speeds, the thermal loads could cause vapor bubbles

in the brake fluid. This situation could lead to reduced braking effectiveness.

The original boiling point of factory-approved brake fluids is

approximately 500°F/260°C. Due to the hygroscopic behavior

of brake fluid, 2% of water within one year is permissible. The

boiling point of brake fluid will drop by 100°C with 3% water

absorption. It is essential to conform with brake fluid changing

intervals in order to guarantee the safety and maximum

effectiveness of a brake system.

It would not be sufficient simply to replace the brake fluid in the

reservoir. Experience has shown that vapor bubbles will

occur first on areas of the brake caliper. This area is subjected to

high thermal loads and also exposed to heat transmission.

When replacing the brake fluid, the brake fluid used as the working

fluid in the hydraulic clutch should also be replaced.

This is done by draining the clutch operation system or bleeding

with the help of the clutch slave cylinder.

The brake fluid should be replaced by filling the brake fluid reservoir. Make sure that each bleeder valve of all wheel

cylinders or brake calipers is kept open until the escaping

brake fluid is clear and without air bubbles. Never use brake

fluid that has been drained from the system.

Storage of brake fluids also deserves your special attention.

The aging process begins with the initial contact between the

brake fluid and the atmosphere. This means immediately after

a new container is opened.

To keep the boiling point of stored brake fluids as high as possible,

we recommend conforming with the following points:

— Close all containers tightly.

— Select small size containers, which can be used up quickly.

— Avoid pouring contents of one container into a different container.

2.0 Handling Brake Fluids

Brake fluids could be mixed up accidentally with mineral oil

products so it is important to leave them in their original

containers and not pour them into a different container.


If brake fluid accidentally comes into contact with your skin,

wash it off with soap and water immediately. Eyes should be

thoroughly flushed with cold water if contacted by brake fluid.

Vomiting should be induced if brake fluid is internally

consumed and a physician should be consulted.

If brake fluid is spilled or drips on a painted surface, wash it

off with water immediately to prevent damage to the paint

finish. Never rub it off. Brake fluids should not have contact

with grease or oil. Wash hands to remove grease and oil before

working with brake fluids. Also make sure that grease cannot

enter the brake system.

Drained brake fluid must never be discarded in the garbage,

oil disposal tanks or water drains.

Read instructions on container label prior to use.

3.0 BMW Tested And Approved Brake Fluids

BMW Tested and Approved DOT 4 ESL Brake Fluid is available as follows:

12 fl. oz. bottle BMW Part No. 81 22 0 142 156

1 gallon container BMW Part No. 81 22 0 142 155

See S.I. Bulletin B 34 09 01.

4.0 Brake Fluid Change Intervals

All Models Brake fluid change interval every 2 years.

5.0 Other Operating Fluids

Anti-Squeak/Corrosion Paste

Bostik NEVER-SEEZ® to prevent disc brake squeaking.

It is applied on cleaned recesses, pressure surfaces of

piston crowns, brake pad backplates and possibly transfer

plates - but not on friction liners.

To prevent corrosion between the ABS impulse sensor and

the hole in the wheel suspension component, apply a thin coat

of Bostik NEVER-SEEZ® to cleaned sensor and hole before assembly.

Bostik NEVER-SEEZ® Part No. NSBT-16

See S.I. Bulletins B 34 02 94, B 34 05 98, and B 34 03 00.

Brake Cleaner Spray

Non-CFC spray (former BMW Part No. 81 22 9 407 704)

for cleaning brakes, brake pads, brake shoes, drums, disks and

other brake components. Also suitable for clutch pressure plates.

3M Part No. 8895

Loctite Part No. 82220

CRC Part No. 08088

and other TOP Secret stuff for my buds :

more usless information

1.0 Introduction

2.0 Corrosion Protection For Vehicle In Long-term Storage

3.0 Conversion Table

4.0 Alternate Universal Lubricants And Workshop Supplies

5.0 Approved Operating Fluids Sources

1.0 Introduction

These operating fluids specifications describe the standards

which are necessary for approval and application for

BMW automobiles. Operating fluids are arranged in vehicle

group category and are approved for all assemblies. Any

reference to a particular fluid contained in an active Service

Information Bulletin since January 1987 will be listed next to

the fluid’s part number. Before applying operating fluids, it is

important to make sure that the specifications and

manufacturing codes on the container conform with those

on the enclosed specification list.

Prior to their approval, all operating fluids are tested in detail on test stands, in laboratories, and in cars during field tests.

As new information is received, the Operating Fluids Manual will be updated. Some lubricants or fluids may be listed in

more than one specific group.

For example, Part No. 81 22 1 468 879 (Pentosin CHF7.1 Fluid) is listed under Group 32

(Steering) as well as in Group 37 (Integrated Suspension Systems).

BMW Car Care products are listed in Group 99.

BMW of North America has also approved various fluids for use which are not available through the Parts Department, but

may be obtained locally. A list of these approved fluids is found on sections 4.0 and 5.0.

Some fluids have been phased out of PDC inventory. Such fluids will be marked by an asterisk (*) after the part number

along with the name(s) of alternate supplier(s) and the product

name/part number.

A binder containing the Material Safety Data Sheets (MSDS) for

BMW NA distributed Chemical Products was sent out

with Parts Bulletin 99 05 97. Questions on the use of this

information may be directed to the Safety and Health

Officer (201-307-3623) or to the Parts Consultant Group (800-272-0202).

2.0 Corrosion Protection For Vehicle In Long-term Storage

Location - inside of a building whenever possible or covered

parking lot (especially convertibles).

Replace engine oil and filter after engine reaches operating

temperature. Run engine several minutes after replacing oil.

Engine oil must be replaced every 12 months. Factory engine

oil (in new cars) can remain in the engine up to 12 months.

Check/correct electrolyte level in battery cells.

Disconnect battery ground lead to avoid discharging battery

through current draw of electrical equipment. Or, switch off

battery main disconnect switch (if equipped).

Recharge battery according to S.I. Bulletin B 61 07 88.

Inspect undercoating for damage and repair as necessary.

Inspect wax coating in engine compartment, on engine,

underbody and axles. Repair as necessary.

Operate air conditioner monthly for 10 minutes in order to

lubricate the seals and the expansion valve. Note: The air

conditioner will only work at temperatures above 37°F/3°C.

Pre-Delivery Cars

Replace brake fluid if car has been parked outdoors longer

than six (6) months.

Fill the vehicle fuel tank with fresh fuel in order to prevent

condensation inside the tank (applies only to metal fuel tanks).

Check, and if needed, correct the coolant level and

concentration of long-term antifreeze and corrosion inhibitor.

Apply brakes to dry the brake discs of any moisture and spray

them with a corrosion inhibitor. Spray the complete brake

assemblies after parking the car at its final storage location.

Do not apply the parking brake. Brake linings could seize

when the parking brake is applied for an extended period of

time. Rather, engage first gear (manual transmissions) or

“park” position (automatic transmissions) to hold vehicle


Increase inflation pressure on all road tires to 50 psi.

Thoroughly clean the entire car, including underside, engine

and engine compartment.

Exterior Finish

Repair any damage to the paint finish. Wash entire vehicle

exterior with BMW Car Wash Shampoo (Part No. 82 14 9 400

129) or equivalent. Polish painted and chrome finishes with

Car Polish Cream - 3M Part No. 6055 (former BMW Part No.

82 14 9 400 131) or equivalent.

Polishing the vehicle with abrasive cleaners and/or cleaner

waxes may have a detrimental effect on the appearance of

the paint. Waxing of Paint Sealer treated vehicles may still

be done, but only if non-abrasive cleaners or non-abrasive

cleaner-waxes are used.

Wax painted and chrome finishes with BMW Car Wax

(Part No. 83 12 9 408 527) or equivalent.

Wax painted and chrome plated parts if storage period

is 12 months or longer. Dewax and rewax cars every six (6)

months if stored outside.

Check convertible top for damage.

3.0 Conversion Table

Conversion Factors:

Liters in US Gallons x 0.264

US Gallons in Liters x 3.785

Liters in US Pints x 2.113

US Pints in Liters x 0.473

4.0 Alternate Universal Lubricants And Workshop Supplies

BMW P/N Description/Application 3M P/N Wrth P/N Loctite P/N

81 22 9 400 208* Lubricant/Contact Cleaner Spray

Stops electrical and mechanical faults due to water, moisture,

rust, dirt and friction. Colorless, neutral, free of grease and silicone,

suitable for all applications.

Examples: Stops moisture on distributor, generator, ignition coil,

starter, spark plugs, coils, relays, contacts, etc. Prevents metal parts

from corroding. Stops rubber and plastic parts from aging

prematurely. Applications: from -50oC to +150oC.

89360/1 24379

81 22 9 400 229* Hand Cleaner

Removes stubborn stains and grit without attacking skin.


special skin protectant. Does not clog pipes.

893900 25108

81 22 9 400 720* Molybdenum Disulfide (MOS2) Spray

Loosens rust, eliminates squeaking and similar noises,

prevent rust seizure. Displaces water on ignition components

to allow quick starting. Insulates electrical systems against

moisture and stops corrosion. 8876 24378

81 22 9 407 138* Stain Remover

Removes tar, oil and grease stains from seat covers, leather

upholstery and painted plastic components.


81 22 9 407 174* Bearing Grease

A water repellent high-pressure grease for lubricating flywheel gear

rings, starter motor pinions, etc., and also as an acid-proof grease

for battery terminal posts.


81 22 9 407 301* Loctite 574

Anaerobic, silicone sealant for aluminum flange surfaces. Provides

instant sealing when flanges are assembled.

893574 24018

81 22 9 407 388* Adhesive Remover

Removes all residual or excess adhesive, sealing and coating

compounds, wax, grease or oil films from painted and plastic

surfaces, i.e. before installing front or rear spoilers and décor strips.


81 22 9 407 394* Loctite 380

Black cyanacrylate adhesive for joining metals, rubber, PVC.

8155 893 4103 38050

81 22 9 407 524* Contact Cement

Powerful adhesive for leather and leatherette, rubber moldings,

seats, rubber mats, noise-absorbent materials, etc. Has good heat

resistance and does not attack paint.

See S.I. Bulletins B 54 02 95 and B 54 01 93 (3754).


81 22 9 407 629* High-Adhesion Lubricant

Long-life high-adhesion lubricant for clutch and brake linkages,

spring struts, stabilizers, idler levers and pivots.

8878 20029

81 22 9 407 711* Universal Lube Spray

Colorless lubricant with high lubricant content. Eliminates squeaks

and grating noises from spring seat bases. Lubricates door stops

and locks, seat adjustment mechanism, etc. Resistant to

8878 893106 20029 temperatures between -50oC and 120oC.

*These items are no longer available through BMW NA Parts Department.

The above alternate suppliers can be contacted below:

3M Wrth USA, Inc. Kem Krest, Inc. (Loctite)

19460 Victor Parkway 93 Grant Street 1919 Superior Street

Livonia, MI 48152 Ramsey, NJ 07446 Elkhart, IN 46515

(800) 521-8180 (800) 526-5228 (800) 285-5917

5.0 Approved Operating Fluids Sources

Group Description, S.I. Bulletin Product Name, Source Telephone

11 Engine Oil, SAE 5W-50 “Syntec FSX”

Castrol Inc., Piscataway, NJ


11 Oxygen Sensor Lubricant Bostik “Never-Seez” NSBT-16

Bostik Findley, Middleton, MA


11 Intake & Vacuum System Leak Detector

S.I. Bulletin B 11 03 92 (3500)

“LiquiMoly (Lubro Moly) Motor Lecksucher” 2021



11 Cold Weld Epoxy “J-B Weld”

J-B Weld Company, Sulphur Springs, TX


13 Loctite 290

Throttle Housing Fasteners

S.I. Bulletin B 13 06 91 (3440)

“Loctite 290”

Kem Krest, Inc., Elkhart, IN


18 Copper Paste Exhaust System Joints

S.I. Bulletin B 18 03 89 (1954)


3M Automotive Trades Division, Livonia, MI


23 Synthetic Transmission Fluid “Mobil SHC 630”

Mobil Oil Corporation


34 Brake Component Lubricant

S.I. Bulletins B 34 02 94 & B 34 05 98

Bostik “Never-Seez” NSBT-16

Bostik Findley, Middleton, MA


36 Loctite 638 (green)

Affix wheel hub covers

“Loctite 680”

Kem Krest, Inc., Elkhart, IN


36 Loctite Cleaner 755

Loctite 242

M5 Wheel Covers

S.I. Bulletin B 36 03 90 (3182)

“Loctite Cleaning Solvent 755”

“Loctite 242”

Kem Krest, Inc., Elkhart, IN


41 Structural Adhesive

S.I. Bulletin B 41 01 95 (4150)

“DP420 Epoxy Adhesive with 3M EPX Applicator”

3M Industrial Tapes and Specialties Division,

Livonia, MI


54 Renax GL1

“Poliplex #1”

Fuchs Lubricants Corp., Harvey, IL


61 Rubberized Super Glue “893 4103”

Wrth USA, Inc., Ramsey, NJ


62 Contact Cleaner Spray

IC Acoustic Transmitter

S.I. Bulletin B 62 04 92 (3539)

“CRC QD Contact Cleaner Spray 5101”

CRC Industries, Warminster, PA


63 Silicone Gasket Material

Turn Signals

“Permatex Form-A-Gasket 6B-80627”

Kem Krest, Inc., Elkhart, IN


Page 5 of 5

S.I. Bulletin B 63 05 91 (3313)

64 AC System Disinfectant

S.I. Bulletin B 64 08 91 (3373)


J.J. Products, Inc., East Orange, NJ


The Auto Doctor, Tucker, GA



64 AC System Treatment “893540-U”

Wrth USA, Inc., Ramsey, NJ


Group Description, S.I. Bulletin Product Name, Source Telephone

97 Brushable Seam Sealer

Seals spot-welded, riveted, or bolted

seams and joints. Brushable consistency

remains flexible. Retains brush marks



Wrth USA, Inc., Ramsey, NJ


97 Body Seal, Beige

Underbody Seal, Black

Permanent, flexible protection against

stone chipping damage. Fast drying and


“0892091 U”

“0893075 U”

Wrth USA, Inc., Ramsey, NJ


97 Seam Sealer, Grey

Fast drying, paintable, silicone-free

sealant for special spray gun application.

“0893228 U”

Wrth USA, Inc., Ramsey, NJ


99 Paint Cleaner “Machine Cleaner 1” and “Hi-Tech Cleaner 2”

Meguiar’s Inc., Irvine, CA


99 Machine Glaze “Mirror Glaze 3”

Meguiar’s Inc., Irvine, CA


99 Paint Sealer “Sealer and Reseal Glaze 7”

Meguiar’s Inc., Irvine, CA


99 Paint Swirl Remover “Hi-Tech Swirl Remover 9”

Meguiar’s Inc., Irvine, CA


99 Paint Carnauba Paste Wax “Hi-Tech Yellow Wax 26”

Meguiar’s Inc., Irvine, CA


. . . and for your clutch :

3.0 Other Operating Fluids

Clutch Component Grease

Use UNIREX S2 (replaces Klueber Microlube GL 261) for the

lubrication of splines on the transmission input shaft,

lubricating groove of the clutch release bearing, piston rod

sleeve, clutch master cylinder and front push rod of the

clutch slave cylinder.

UNIREX S2 Grease BMW Part No. 83 23 9 416 138

See S.I. Bulletin 23 01 99 of 2/99.

As of 11/93 the clutch release bearings are available as

a replacement part which have plastic sliding sleeves

instead of aluminum. Such updated bearings should

not be lubricated at all. This applies to all models with

manual transmission except for 8 Series models.

See S.I. Bulletin 21 01 94 (3953) of 1/94.

'86 R65 650cc #6128390 22,000m
'64 R27 250cc #383851 18,000m
'11 FORD Transit #T058971 28,000m "Truckette"
'13 500 ABARTH #DT600282 6,666m "TAZIO"

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