Front Lower Trailing Arm Left Right For BMW 7 Series G11 G12 31106861151 31106861152

Q1: Which vehicles does this fit? BMW 7 Series G11/G12 (2015–2022) per the supplier table. European catalog data also lists BMW 6 Series (2017–2020). Confirm the exact model and year by VIN.

Q2: Is the left/right side interchangeable? No — this is a mirror pair: Left 31106861151 and Right 31106861152 are side-specific and NOT interchangeable. Order by side.

Q3: What is this arm exactly? The front lower trailing arm / track control arm — position: Front Axle, Lower, Front. Aluminium control-arm type (catalog-verified). No electrical damping — a plain mechanical suspension linkage.

Q4: Is it the complete arm with bush? The arm itself; the matching mounting bush and wheel-suspension repair kit are available separately (catalog-listed accessories) — recommended to replace together.

Q5: Do I need to replace both sides at the same time? Same-axle pair replacement is strongly recommended; an old arm on the other side causes uneven geometry and tire wear.

Q6: What should I pay attention to during installation? Replace the mounting bush with the arm; tighten all bolts to the workshop-manual torque specifications with the suspension under load; after installation perform a wheel alignment (camber/caster/toe) and check the ride height per workshop manual.

Q7: Warranty policy and shipping damage? 18-month warranty under normal use. For shipping damage, inspect within 48 hours of receipt and send photos/video — the seller arranges a replacement.

Q8: Service life and maintenance? Depends on road conditions and climate. Check the bush for cracks and the ball joint for play during routine service; replace the arm if bush wear, play or crash damage is found.

Q9: Are aftermarket alternatives available? The interchange list for these OE numbers is available on request. Order by the exact OE number and confirm the model/year and side by VIN.