37105A44643 37105A44644 Rear Air Suspension Strut Shock Absorber For BMW 7 Series G70

Q1: What is the difference with 37105A44643 and 37105A44644?

37105A44643 is the Rear Left and 37105A44644 is the Rear Right unit. They form a mirror-image pair for the rear axle and must not be swapped side-to-side.

Q2: Which vehicles does this fit?

BMW 7 Series G70 740i (approx. 2023–2025) models equipped with rear air suspension. Vehicles without air suspension do NOT fit. Confirm the exact model year and equipment by VIN.

Q3: How do I confirm fitment for my car?

Check the part number by VIN in a BMW EPC catalog, or read the part number on the original unit and confirm it matches 37105A44643 (left) or 37105A44644 (right). Provide the VIN to the seller before ordering.

Q4: Do I need to replace both rear sides at the same time?

Replacing as a same-axle pair is strongly recommended. An old unit on the other side may cause uneven ride height and leveling behavior, affecting handling and comfort.

Q5: How is this different from the genuine BMW part?

Structure, spring rate and damping calibration match the OE specification and are tested to original standards. The main differences are the price (far lower than dealer) and the supply channel. Core components use durable materials — this is not a low-grade substitute.

Q6: How do I know the rear air shock is failing?

Common symptoms: ① the rear of the car sags or settles overnight; ② the air compressor runs frequently or for long periods; ③ a ride-height / suspension warning light on the dash; ④ knocking or harshness from the rear suspension while driving. Replace as soon as possible once these appear.

Q7: What should I pay attention to during installation?

① Jack up the vehicle and release the air suspension system pressure per the workshop manual; ② disconnect the air line carefully and protect the connector from dirt; ③ mount the new unit and reconnect the air line; ④ start the car and perform a ride-height reset / system initialization; ⑤ verify left/right height is even and there is no leak before a road test.

Q8: Is this the complete rear assembly?

Yes. This is the complete rear air suspension shock absorber — air spring and shock absorber integrated into one unit, matching the original assembly and ready for direct replacement.

Q9: What is the warranty policy? What about shipping damage?

18-month warranty under normal use. For shipping damage, inspect the package within 48 hours of receipt and send photos/video — the seller will arrange a replacement.

Q10: How long do these units last, and can I maintain them?

Service life depends on road conditions and climate; keeping the bellows clean and checking for cracks during routine service helps extend life. If the bellows crack or leak, replacing the complete unit is the most reliable and cost-effective solution.