Where is the Urea Filter Located?
3 Answers
Urea filter is located on the urea pump. The urea filter usually needs to be replaced every 50,000 to 60,000 kilometers because the dirt-holding capacity of the urea filter is limited. Even when using genuine urea solution, regular replacement is necessary. Once the filter loses its filtering effect, impurities in the urea can cause system failures. Urea is used to purify the exhaust gases of diesel engine vehicles, which is why diesel engine vehicles require urea. The working principle of a diesel engine differs from that of a gasoline engine. Diesel engines do not have spark plugs and do not rely on them to ignite the air-fuel mixture. In a diesel engine, the combustible mixture self-ignites after the compression stroke is completed.
As a diesel vehicle owner, I often encounter this issue. The urea filter screen is typically located on the inlet pipe of the urea tank, with its exact position varying by vehicle model. In my pickup truck, it's near the rear axle under the chassis, close to the exhaust pipe. This filter screen is responsible for filtering impurities in the urea solution to prevent particles from clogging the injector or damaging the SCR system. If not cleaned regularly, the dashboard warning light will come on, power will be limited, and fines for excessive emissions will follow. I check it every 10,000 kilometers, locating it step by step using the diagrams in the user manual, and simply rinse it with cleaner—saving money and giving peace of mind. When driving daily, pay attention to road conditions to avoid mud splashing in. Though small, its position can directly affect vehicle performance and environmental compliance. Don’t overlook it during maintenance!
As someone who prioritizes driving safety, I fully understand the importance of the urea filter screen. It's always located in the urea supply line, near the tank inlet. From my experience, in passenger cars it might be found under the engine compartment or behind the rear bumper beam, while for trucks it's typically in the rear axle area. When poorly maintained, the filter screen can easily clog, triggering emission warning lights or vehicle speed limitation – especially dangerous during highway driving. I recommend regular inspections using professional tools, cleaning the filter every six months to ensure smooth filtration of impurities and system protection. Additionally, its exact location can be found through diagrams in the user manual. DIY-savvy car owners can perform simple maintenance themselves to extend component lifespan and avoid costly repairs. Keeping it in good condition is an integral part of safe driving.
