CS75 PLUS repeated coolant loss: check hoses, connections and radiator separately

CS75 PLUS repeated coolant loss: check hoses, connections and radiator separately

If coolant in a CS75 PLUS falls again after topping up, do not immediately order a radiator assembly. The Egypt factory maintenance schedule includes the radiator, hoses and connections in its inspection items. Locate the leak before deciding what to replace.

Inspect hoses, connections and clamps separately

Changan Egypt's published CS75 PLUS schedule requires checks for engine leaks and inspection of the cooling-system radiator, hoses and connections. [Factory maintenance items][S18] These are inspection subjects, not an instruction to replace the whole set whenever the fluid level falls.

Gates' general technical guidance identifies wetness, drips and coolant traces around hose bodies, clamps and connections as clues. Possible causes include clamp fastening issues and hose or connector deterioration. [Hose leakage guidance][S25] Wet traces therefore still need locating; do not classify every leak as a radiator leak or keep tightening clamps without considering their construction.

Some damage extends beyond a leak point

Gates also describes abrasion, hardening and cracking, and softening or swelling after oil contamination. [Failure symptoms][S25] These provide directions for hose inspection, rather than evidence of a confirmed common CS75 PLUS fault.

If hose damage is confirmed, investigate rubbing, contact with sharp edges or the source of oil contamination as well as addressing the hose. Replacing it while leaving the damaging condition in place leaves the repair assessment incomplete. Layout and attachment must follow the vehicle's requirements; general illustrations do not justify changing the routing.

Coolant-change timing is not a universal hose life

The schedule separately lists coolant replacement and cooling-system inspection. [Factory schedule][S18] They address different needs: coolant service becoming due does not mean every hose has reached the end of its life, while a damaged hose should not wait until the next coolant change.

Persistent fluid loss or abnormal temperature requires prompt leak investigation by a repairer rather than reliance on topping up and observation. Do not open caps, remove hoses or tighten connections while the system is hot.

Verification and parts enquiry

This article uses the Egypt factory schedule; Gates material provides general component guidance only and is not extended to other markets. No public data were available for specific model-year mapping, hose routing, clamp torque, rejection limits or OE numbers. This article is not a recall notice. [To be verified] Parts compatibility or interchangeability must be checked using the VIN and the local factory parts catalogue.

For ordinary cooling-line parts, use the parts enquiry page.

[S18]: https://changan.com.eg/wp-content/uploads/2026/02/Maintenance-Schedule_Cs75-plus.pdf
[S25]: https://www.gatestechzone.com/gb/en/technical-section/cooling-guide/hose-failure-symptoms.html