2019 BMW 640I Cooling System Parts

This table covers the engine coolants and antifreeze formulations specified for this cooling system. Typical signs include a rising temperature gauge, rusty or sludged coolant, or a heater that blows cold. Use the chemistry named in the notes. Mixing silicate, OAT and HOAT formulas can gel in the radiator. Read more

13 Coolant / Antifreeze parts are listed for the 2019 BMW 640I, from PRESTONE, PEAK, VALVOLINE and 2 other brands. FVP MV5050GAL carries the "Popular" badge.

The Compatible With All Colors section lists 1 option from PRESTONE — grouped under the catalog's "Compatible With All Colors" designation — the notes column spells out what sets them apart. PRESTONE AF3055 is listed in this group.

In the Economy grade, FVP, PRESTONE, PEAK and 1 other brand supply 4 parts: the catalog's value-priced group. A representative part number is FVP MV5050GAL.

The Premium section lists 5 options from PRESTONE and PEAK — a step above OE specification in materials, tolerances or warranty terms. PRESTONE AF2100 is listed in this group.

The Standard Replacement section lists 3 options from AISIN, PEAK and VALVOLINE — built to original-equipment specification. AISIN ACE008 is listed in this group.

This table covers the bleeders used to purge air from the coolant circuit. Read more

4 Coolant Air Bleeder parts for the 2019 BMW 640I come from 2 brands — DORMAN and SKP.

Part numbers include DORMAN 902404, DORMAN 902404HP and SKP SK902404, among others listed above.

This table covers the hard pipes and extra hoses in the coolant circuit. Read more

5 Coolant Hose / Pipe parts are listed for the 2019 BMW 640I, from REIN, ÜRO PARTS and VAICO. REIN CHE0976 carries the "Popular" badge.

Listed part numbers: REIN CHE0976, REIN CHE1003 and REIN CHR1015, plus the other parts above.

This table covers the seals at the Coolant Hose / Pipe. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

2 Coolant Hose / Pipe Seal parts for the 2019 BMW 640I come from 2 brands — DORMAN and VICTOR REINZ.

Listed part numbers: DORMAN 47451 and VICTOR REINZ 417311500.

This table covers the Coolant Hose Connector flanges. Read more

4 Coolant Hose Connector / Flange parts are listed for the 2019 BMW 640I, from REIN and DORMAN.

Economy: 1 part, from DORMAN. A representative part number is DORMAN 926905.

The Standard Replacement section: 3 options from REIN. REIN CHC0609 is listed in this group.

This group includes DORMAN 926905, REIN CHC0609 and REIN CHU0940 and the remaining parts above.

This table covers the Coolant Hose Flange plugs. Typical signs include a leak at the drain or glow-plug hole, or a plug that has rounded off. Replace the crush washer and torque to the spec in the notes. Read more

One part is listed for the 2019 BMW 640I — VAICO V202821.

This table covers the Coolant Level sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

3 Coolant Level Sensor parts are listed for the 2019 BMW 640I, from ÜRO PARTS, VEMO and VNE.

This group includes ÜRO PARTS 17137524812, VEMO V20720055 and VNE 9117553.

This table covers the overflow / expansion tanks that hold extra coolant. Read more

13 Coolant Reservoir parts for the 2019 BMW 640I come from 6 brands — REIN, ÜRO PARTS, GPD and 3 other brands. The "Popular" part is DORMAN 603830.

This table covers the caps on the overflow / expansion tank. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable. Read more

5 Coolant Reservoir Cap parts for the 2019 BMW 640I come from 3 brands — MOTORAD, CALORSTAT and REIN. The "Popular" part is MOTORAD T64.

Part numbers include MOTORAD T64, CALORSTAT RC0084 and CALORSTAT RC0083, among others listed above.

This table covers the intercoolers that cool turbo or supercharger charge air. Read more

One part is listed for the 2019 BMW 640I — MAHLE / CLEVITE CI228000P.

This table covers the gaskets that seal the Intercooler. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

This group shows a single part: AJUSA 01460200.

This table covers the seals at the Intercooler. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

This group shows a single part: ÜRO PARTS 13718596850.

This table covers the radiators that dump engine heat to airflow through the core. Typical signs include overheating in traffic, a wet core, or coolant that disappears with no puddle. Replace the cap if it cannot hold the rated pressure, and bleed the system after the swap. Read more

6 Radiator parts are listed for the 2019 BMW 640I, from MAHLE / CLEVITE, GPD and NISSENS. GPD 13274C carries the "Popular" badge.

Economy: 1 part, from GPD. A representative part number is GPD 13274C.

The Standard Replacement section: 5 options from MAHLE / CLEVITE and NISSENS. NISSENS 60874 is listed in this group.

This group includes GPD 13274C, NISSENS 60874 and MAHLE / CLEVITE CR2307000P and the remaining parts above.

This table covers the fan assemblies (and clutches, where listed) that pull air through the radiator. Read more

5 Radiator Fan Assembly parts for the 2019 BMW 640I come from 5 brands — GPD, TECHPRO, FOUR SEASONS and 2 other brands. The "Popular" part is FOUR SEASONS 75913.

The Economy section: 2 options from GPD and TECHPRO. GPD 2812048 is listed in this group.

Standard Replacement: 3 parts, from FOUR SEASONS, UAC and VDO / CONTINENTAL. A representative part number is FOUR SEASONS 75913.

This group includes FOUR SEASONS 75913, GPD 2812048 and TECHPRO BM3115139 and the remaining parts above.

This table covers the upper, lower and connecting hoses between radiator, engine and reservoir. Typical signs include swelling, cracks, a soft spot, or a leak at a clamp. Replace adjacent aged hoses while the system is drained — they share the same heat cycle. Read more

5 Radiator Hose parts for the 2019 BMW 640I come from 2 brands — REIN and DAYCO. The "Popular" part is DAYCO 73094.

Part numbers include DAYCO 73094, REIN CHR0604 and REIN CHR1001, among others listed above.

This table covers the Radiator mounts. Typical signs include a clunk on takeoff, a vibration at idle, or a separated rubber insert. Support the powertrain before unbolting a mount, and torque the fasteners in the notes. Read more

3 Radiator Mount parts for the 2019 BMW 640I come from REIN.

Listed part numbers: REIN AVM0722, REIN AVM0721 and REIN AVM0701.

This table covers the senders that report coolant temperature to the gauge or ECU. Typical signs include a gauge that sits on empty or overheat, or a lamp that does not match what the engine is doing. Rule out the cluster and the wiring before replacing the sender. Read more

13 Temperature Sender / Sensor parts are listed for the 2019 BMW 640I, from HOLSTEIN, WALKER PRODUCTS, GPD and 7 other brands. HOLSTEIN 2CTS0094 carries the "Popular" badge.

Economy: 5 parts, from HOLSTEIN, GPD and UNITED MOTOR PRODUCTS. A representative part number is HOLSTEIN 2CTS0094.

The Standard Replacement section: 8 options from WALKER PRODUCTS, BECK/ARNLEY, DELPHI and 4 other brands. BECK/ARNLEY 1580792 is listed in this group.

This table covers the thermostats that open the coolant circuit at the specified temperature. Typical signs include slow warm-up, a gauge that climbs in traffic, or heat that never quite arrives. Replace the housing gasket with the thermostat and bleed the system so a trapped air pocket does not cook the new part. Read more

7 Thermostat parts for the 2019 BMW 640I come from 6 brands — MOTORAD, DORMAN, SKP and 3 other brands. The "Popular" part is MOTORAD 916217.

The Economy section: 2 options from DORMAN and SKP. DORMAN 9025823 is listed in this group.

Standard Replacement: 5 parts, from MOTORAD, CALORSTAT, FOUR SEASONS and 1 other brand. A representative part number is MOTORAD 916217.

This group includes MOTORAD 916217, DORMAN 9025823 and SKP SK86355 and the remaining parts above.

This table covers the seals at the thermostat housing and water outlet. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

4 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 2019 BMW 640I, from ELRING and AJUSA.

Part numbers include AJUSA 16092800, ELRING 546890 and ELRING 546950, among others listed above.

This table covers the housings and outlets the thermostat sits in. Read more

This group shows a single part: ÜRO PARTS 11118619408PRM.

This table covers the pumps that circulate coolant through the block and radiator. Typical signs include coolant at the weep hole, pulley play, or a growl from the front of the engine. Replace the thermostat and refill with the specified coolant whenever the pump comes off. Read more

15 Water Pump parts for the 2019 BMW 640I come from 12 brands — GMB, BOSCH, PIERBURG and 9 other brands. The "Popular" part is US MOTOR WORKS US6681.

The Economy section: 4 options from US MOTOR WORKS, BECK/ARNLEY, DORMAN and 1 other brand. US MOTOR WORKS US6681 is listed in this group.

Standard Replacement: 11 parts, from GMB, BOSCH, PIERBURG and 5 other brands. A representative part number is DAYCO DEP1038.

This table covers the gaskets between the water pump and the block or housing. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

3 Water Pump Gasket parts are listed for the 2019 BMW 640I, from ELRING and MAHLE / CLEVITE.

This group includes ELRING 773780, ELRING 113600 and MAHLE / CLEVITE K33796.