Automotive transmission oil pipe OE code number 17227577636 (transmission oil pipe) is the core component of the transmission cooling and lubrication system, its function, common problems and maintenance points are as follows:
I. Main Functions
★ Heat dissipation and temperature control
The circulating coolant takes away the heat generated when the gearbox is working, maintains the gearbox oil temperature in a reasonable zone, and avoids the wear of internal components or aging of seals due to overheating.
★ Oil pressure circulation
Connecting the gearbox with the radiator to form an oil circulation path, ensuring stable oil pressure and taking away impurities to protect the internal gears and hydraulic valves of the gearbox.
★ Temperature regulation
In a cold environment, the oil pipe works with the engine cooling system to quickly heat up the transmission oil and shorten the warm-up time for cold start.


II. Common Problems
★ Oil Leakage / Burst Pipe
Long-term high temperature or aging of the oil pipe may lead to sealing failure of the interface and rupture of the pipe body, triggering oil leakage, which may affect the lubrication of the gearbox and trigger the malfunction alarm in serious cases.
Case: Harvard H9, Chery GX and other models have experienced oil leakage or pipe burst due to oil pipe clamping or material problems.
★ Abnormal oil pressure
Blockage or deformation of the oil pipe will hinder the flow of oil, resulting in unstable oil pressure in the transmission, which will be manifested as stuttering gear shifting, abnormal noise or even power interruption.
★ Deterioration of heat dissipation efficiency
If the heat dissipation oil pipe OE code No. 17227583163 and the tank integrated design (such as some older models) is clogged, it may trigger overheating of the transmission and accelerate the oxidation of the fluid.


Ⅲ. Maintenance Recommendations
★ Regular replacement of fluid and tubes
It is recommended to change the transmission fluid every 60,000 kilometers or according to the manual of the model, and check the aging condition of the oil pipe at the same time; some models (e.g. Audi A4L) need to change the oil by using a circulating machine to make sure that the old and the new oils are completely replaced.
★ Professional tools and standardized operation
When replacing the oil pipe, it is necessary to distinguish between the oil inlet and oil return pipes (usually the upper one is the oil return pipe and the lower one is the oil inlet pipe), and the connection of the circulator should strictly follow the connector marking, so as to avoid abnormal oil pressure caused by the reverse installation.
★ Check the linked parts of the cooling system
Regularly clean the gearbox radiator and peripheral piping to avoid indirectly affecting the life of the oil pipe due to the reduced cooling efficiency of the water tank.
★ Prioritize original or adapted parts
When replacing the fuel line, choose the parts that match the original specifications (e.g. Nissan Prowler J11 special fuel line, BMW E90 compatible model, etc.) to ensure that the pressure resistance and temperature resistance are up to the standard.
Ⅳ. Typical parts reference
★ Applicable models and prices
Nissan Prowler J11 special fuel line: ¥1.0~¥37.531
Oil hose for Audi A4L: ¥2447
Volvo V40 fuel line: ¥130

