BMW 11537500735 Cooling System Water Hose

You can Select Your Vehicle to check if 11537500735 fits your vehicle.

Inspect cooling system hoses by ensuring all connections are tight and dry, as coolant seepage may indicate a loose hose clamp, damaged hose, or dirty/corroded connection, with dried coolant appearing chalky. Conduct a visual and tactile inspection to assess hose condition, ensuring it feels firm and springy, and replace hoses that show any of the following issues: leakage with dripping or moisture near clamps or connectors; electromechanical degradation detectable by squeezing for cracks or weak areas; oil damage resulting in a soft, spongy texture with visible bulges; abrasion damage from wear or scuffing due to contact with engine components; heat damage indicated by swelling or hardened, cracked areas from high temperatures; and ozone damage characterized by small, parallel cracks without hardening from atmospheric exposure. To prevent issues, replace coolant hoses every 4 years, and when installing or reinstalling, use clamps specified by BMW, as some types do not accommodate heat expansion and contraction, leading to leaks.