B0408 Seat Marbella DTC Code

Seat Marbella Engine Specifications:

Engine Type :	Single Cylinder Engine
Cylinder Type :	Opposite Piston Engine
Engine Air Intake Process :	Turbocharged Engine

Your Seat Marbella engine control system detects a problem, the computer stores the diagnostic trouble code B0408 in its memory. To figure out what is wrong with your vehicle you must first extract the B0408 DTC For Seat Marbella.

Another consequence of B0408 Seat Marbella engine overheating may be a blown head gasket. Heat makes aluminum swell almost three times faster than cast iron. Thermal stress can distort the head and make it swell in areas that are hottest like those between exhaust valves in adjoining cylinders, and areas that have restricted coolant flow like the narrow area that separates the cylinders. The typical aluminum head swells most in the middle, which can crush the head gasket if the head gets too hot. This will usually cause the head gasket to leak compression between adjacent cylinders, or leak coolant into the cylinders.

B0408 Seat Marbella DTC Meaning

B	Body Code - Problem is antilock brake system, electronic suspension and steering systems.
0	SAE - Generic
4	Fuel And Air Metering (Injector Circuit Malfunctions Only)
0	Air Conditioning (A/C) Clutch Feedback Circuit High Voltage
8	Park/Neutral Postion (PNP) Switch Circuit Engine Torque Signal Circuit

If your vehicle failed a B0408 Seat Marbella test and the B0408 Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses B0408 a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look B0408 DTC For Seat Marbella: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression.