Technical Service Bulletin # 170107
Cooling System Long Term Coolant Service Information
SI B 17 01 07
Cooling Systems
June 2010
Technical Service
This Service Information bulletin supersedes SI B17 01 07 dated October 2007.
[NEW] designates changes to this revision
SUBJECT
BMW Longterm Antifreeze/Coolant: Maintenance, Repairs, and Replacement Requirements
MODEL
2003 E85 (Z4)
Date: 1006012010 BMW 750Li (F02) V84.4L Turbo (N63)
Page 323
2004 and newer, all models
INFORMATION
The cooling systems for the BMW vehicles listed above must only be filled with a longterm ethylene glycol antifreeze/coolant solution
containing corrosion inhibitors that are compatible with aluminum components.
Engine Antifreeze/Coolants for BMW vehicles have four basic functions:
^ Help provide sufficient cooling;
^ Help provide the cooling system with protection against winter freezeups and summer boilovers;
^ Protect various metals (gray cast iron, steel, aluminum alloys, brass, copper, and solder) against corrosion; and
^ Prevent excessive silicate gel precipitation, which may cause clogging of the cooling system.
[NEW] Coolant System Repairs
In conjunction with any major repairs where aluminum or metal cooling system components are replaced (e.g., radiator, cylinder head),
drain and completely replace the longterm antifreeze/coolant. These components require corrosion protection that is only available with
new longterm antifreeze/coolant.
For all other repairs involving the draining of partial quantities of coolant (e.g., thermostat replacement), replenish those drained
quantities with new longterm antifreeze/coolant. It is important, in order to maintain corrosion protection, not to reuse any drained
coolant. Always recycle or properly dispose of used engine coolant.
Initial Filling at the Factory and Refilling
The antifreeze concentration of the coolant installed at the factory is valid for all areas of the U.S. and Canadian markets. This should be
checked before the beginning of each winter for sufficient protection against freezing. An antifreeze tester is required to correctly
determine the level of antifreeze concentration.
[NEW] Refer to SI B17 01 06 and SI B17 01 10 (or REP 17 00 039) for more details on refilling the coolant system.
Diluted or Contaminated Longterm Antifreeze/Coolant
The corrosion inhibitors of longterm and shortterm antifreeze/coolants do not work together, so it is not advisable to mix the two
products. Topping off a longterm antifreeze/coolant solution with a shortterm antifreeze/coolant solution dilutes the level of corrosion
protection. In an emergency situation, when longterm antifreeze is not available, top off with water until a longterm antifreeze/coolant is
obtained. Since adding water will dilute the level of antifreeze protection, always remember to check and adjust the antifreeze
concentration as necessary after such situations.
The color of BMW Longterm Antifreeze/Coolant is blue; however, the colors of other locally available long and shortterm coolants vary.
These colors include green, orange, pink, red, or yellow. Mixing BMW Longterm Antifreeze/Coolant with these different colors and types
of antifreeze/coolants can result in a discolored solution in the cooling system. If a discolored antifreeze/coolant solution is found in the
cooling system, determine the cause, repair the vehicle as needed, and, if necessary, replace the antifreeze/coolant completely to ensure
adequate corrosion protection.
BMW Longterm Antifreeze/Coolant Chemistry
Longterm antifreeze/coolants utilize Organic Acid Technology (OAT). OATtype antifreeze/coolant solutions use organic acid salts in
place of the inorganic corrosion inhibitor additives found in traditional shortterm antifreeze/coolants. OATtype corrosion inhibitors are
sloweracting, last longer, and provide excellent longterm corrosion protection for various coolant system aluminum and metal
components, along with no required change interval.
BMW's Longterm Antifreeze/Coolant (82 14 1 467 704) is a Hybrid OAT (HOAT) solution, since it also has added silicates to provide
quickacting protection for aluminum surfaces. Silicates help repair surface erosion caused by cavitation in the water pump.
BMW's Longterm Antifreeze/Coolant does not contain nitrites or phosphates and has been formulated to prevent excessive silicate gel
precipitation, significantly reducing the possibility of harmful deposit formation.
BMW Antifreeze/Coolant Maintenance Summary
BMW's Longterm Antifreeze/Coolant can be used for all model years; however, its use does not eliminate or supercede a stated change
interval. Always maintain the antifreeze/coolant in accordance with the cooling system maintenance requirements outlined in the2010 BMW 750Li (F02) V84.4L Turbo (N63)
Page 324
corresponding vehicle's Service and Warranty Information Booklet.
The summary above details the BMW conversion, by model year (MY) and model, to a longterm antifreeze/coolant solution.
WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle Limited Warranty or the BMW Maintenance Programs.
Cooling System Long Term Coolant Service Information
SI B 17 01 07
Cooling Systems
June 2010
Technical Service
This Service Information bulletin supersedes SI B17 01 07 dated October 2007.
[NEW] designates changes to this revision
SUBJECT
BMW Longterm Antifreeze/Coolant: Maintenance, Repairs, and Replacement Requirements
MODEL
2003 E85 (Z4)
Date: 1006012010 BMW 750Li (F02) V84.4L Turbo (N63)
Page 323
2004 and newer, all models
INFORMATION
The cooling systems for the BMW vehicles listed above must only be filled with a longterm ethylene glycol antifreeze/coolant solution
containing corrosion inhibitors that are compatible with aluminum components.
Engine Antifreeze/Coolants for BMW vehicles have four basic functions:
^ Help provide sufficient cooling;
^ Help provide the cooling system with protection against winter freezeups and summer boilovers;
^ Protect various metals (gray cast iron, steel, aluminum alloys, brass, copper, and solder) against corrosion; and
^ Prevent excessive silicate gel precipitation, which may cause clogging of the cooling system.
[NEW] Coolant System Repairs
In conjunction with any major repairs where aluminum or metal cooling system components are replaced (e.g., radiator, cylinder head),
drain and completely replace the longterm antifreeze/coolant. These components require corrosion protection that is only available with
new longterm antifreeze/coolant.
For all other repairs involving the draining of partial quantities of coolant (e.g., thermostat replacement), replenish those drained
quantities with new longterm antifreeze/coolant. It is important, in order to maintain corrosion protection, not to reuse any drained
coolant. Always recycle or properly dispose of used engine coolant.
Initial Filling at the Factory and Refilling
The antifreeze concentration of the coolant installed at the factory is valid for all areas of the U.S. and Canadian markets. This should be
checked before the beginning of each winter for sufficient protection against freezing. An antifreeze tester is required to correctly
determine the level of antifreeze concentration.
[NEW] Refer to SI B17 01 06 and SI B17 01 10 (or REP 17 00 039) for more details on refilling the coolant system.
Diluted or Contaminated Longterm Antifreeze/Coolant
The corrosion inhibitors of longterm and shortterm antifreeze/coolants do not work together, so it is not advisable to mix the two
products. Topping off a longterm antifreeze/coolant solution with a shortterm antifreeze/coolant solution dilutes the level of corrosion
protection. In an emergency situation, when longterm antifreeze is not available, top off with water until a longterm antifreeze/coolant is
obtained. Since adding water will dilute the level of antifreeze protection, always remember to check and adjust the antifreeze
concentration as necessary after such situations.
The color of BMW Longterm Antifreeze/Coolant is blue; however, the colors of other locally available long and shortterm coolants vary.
These colors include green, orange, pink, red, or yellow. Mixing BMW Longterm Antifreeze/Coolant with these different colors and types
of antifreeze/coolants can result in a discolored solution in the cooling system. If a discolored antifreeze/coolant solution is found in the
cooling system, determine the cause, repair the vehicle as needed, and, if necessary, replace the antifreeze/coolant completely to ensure
adequate corrosion protection.
BMW Longterm Antifreeze/Coolant Chemistry
Longterm antifreeze/coolants utilize Organic Acid Technology (OAT). OATtype antifreeze/coolant solutions use organic acid salts in
place of the inorganic corrosion inhibitor additives found in traditional shortterm antifreeze/coolants. OATtype corrosion inhibitors are
sloweracting, last longer, and provide excellent longterm corrosion protection for various coolant system aluminum and metal
components, along with no required change interval.
BMW's Longterm Antifreeze/Coolant (82 14 1 467 704) is a Hybrid OAT (HOAT) solution, since it also has added silicates to provide
quickacting protection for aluminum surfaces. Silicates help repair surface erosion caused by cavitation in the water pump.
BMW's Longterm Antifreeze/Coolant does not contain nitrites or phosphates and has been formulated to prevent excessive silicate gel
precipitation, significantly reducing the possibility of harmful deposit formation.
BMW Antifreeze/Coolant Maintenance Summary
BMW's Longterm Antifreeze/Coolant can be used for all model years; however, its use does not eliminate or supercede a stated change
interval. Always maintain the antifreeze/coolant in accordance with the cooling system maintenance requirements outlined in the2010 BMW 750Li (F02) V84.4L Turbo (N63)
Page 324
corresponding vehicle's Service and Warranty Information Booklet.
The summary above details the BMW conversion, by model year (MY) and model, to a longterm antifreeze/coolant solution.
WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle Limited Warranty or the BMW Maintenance Programs.
