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Content .. 1946 1947 1948 1949 ..
z All electrical consumers such as, for example, lights and rear window defroster must be switched off. z If vehicle is equipped with an A/C system, it must be switched off. z Ground (GND) connections between engine and chassis must be OK. z There must not be any DTCs stored in DTC memory. See Diagnostic mode 3: Check DTC Memory . z Intake air temperature 5 to 35° C. See DIAGNOSTIC MODE 1: CHECK MEASURED VALUES . Work procedure z Connect diagnostic tester. See CONNECT DIAGNOSTIC TESTER . z Perform a road test. The following operating condition must be met during this road test: z Coolant temperature must reach at least 80 °C. See DIAGNOSTIC MODE 1: CHECK MEASURED Observe the safety precautions that apply to road tests. See SAFETY PRECAUTIONS . Let vehicle cool off with the ignition switched off until the following condition is met: z Coolant temperature approx. intake air temperature (5 to 35° C). See DIAGNOSTIC MODE 1: z Perform a road test anew. The following operating conditions must be met during this road test: z Accelerate vehicle uniformly, not at Wide Open Throttle (WOT). z Drive for 10 minutes in the highest gear or in the highest driving mode on a level driving surface at a z After 10 minutes, downshift until an engine speed of 2800 to 3500 RPM has been reached. z Drive in deceleration mode at a speed up to approx. 1800 RPM. z Park vehicle and let engine run at idle for 3 minutes. z Accelerator pedal must not be operated during this time. z Perform a road test anew. The following operating conditions must be met during this road test: NOTE: z Vehicle speed. See DIAGNOSTIC MODE 1: CHECK MEASURED VALUES . z Engine speed. See DIAGNOSTIC MODE 1: CHECK MEASURED VALUES .
2003 Volkswagen New Beetle GLS 1998-2004 ENGINE PERFORMANCE On-Board Diagnostic (OBD), 2.0L Generic Scan Tool - New Beetle
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