A second opinion on AdBlue quotes, just up the A237
AdBlue parts aren't cheap, and the fault codes can point in several directions at once. It's common for drivers to be told they need a complete tank module or a pair of NOx sensors on the strength of a code reading alone. Sometimes that's right. Sometimes the real cause is a wiring fault, a blocked injector or fluid that has gone out of specification, and the expensive part was never needed. AdBlue systems also tend to log several codes at once when one part fails, because each component reports what it sees downstream.
That's why we test rather than assume. We run the manufacturer's dosing test, measure pump pressure and heater current, check the wiring back to the connectors and compare the sensor readings with the car's own logged data. If the quality sensor is complaining, we check the fluid before blaming the sensor. You end up with a clear reason for each recommended part and a written quote you can compare with any other. Nothing is replaced until you've agreed to it.
Around Wallington the school run shapes a lot of diesel use. Mornings near Wallington High School for Girls and Wallington County Grammar School mean slow, short journeys with plenty of queuing, and the Boundary Road and Park Lane routes towards Carshalton are much the same. Those are the conditions that encourage crystallisation at the injector, so it's often one of the first things we look at. Diesels that also do regular runs along Croydon Road towards Beddington tend to fare better, as those journeys are longer.
From the town centre it's a straight run of about 1.7 miles north up Woodcote Road, Manor Road and London Road. From Woodcote Green, allow a few minutes more. Parking near the station and town centre is controlled, so if you're leaving the car for someone else to drop off, check the signs first, or let us collect it. Repairs carry our 3-month workmanship warranty.