C3749 Volkswagen Auto Trouble Code
Parts or components should not be replaced with reference to only a C3749 Volkswagen DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.
The problem is caused by the variable cylinder management system switching on and off during light throttle conditions, at cruising speeds, or when driving on flat roads. The constant switching causes excessive oil consumption and the trouble codes appear when oil pressure drops to the point where it can no longer operate the VCM system.
C3749 Volkswagen Possible Solution:
Gasoline engines use spark plugs to cause an explosion of fuel within the cylinder. In a properly timed engine, this explosion occurs at the proper moment to send the piston to the bottom of the cylinder and provide power to the drive shaft. If the plug wires are out of sequence, the explosion occurs at the wrong time. The improper timing of the explosion sometimes pushes the cylinder the wrong direction or interferes with the turning of the crank. As a result, the engine stutters or backfires, if it runs at all.
C3749 Volkswagen Description For All Models :
- Volkswagen 1200
- Volkswagen 1300
- Volkswagen 1302
- Volkswagen 1303
- Volkswagen 1500
- Volkswagen 1600
- Volkswagen 181
- Volkswagen 1-litre
- Volkswagen 411
- Volkswagen Aac
- Volkswagen Amarok
- Volkswagen Arteon
- Volkswagen Atlas
- Volkswagen Beetle
- Volkswagen Bora
- Volkswagen Brasilia
- Volkswagen Cabriolet
- Volkswagen Caddy
- Volkswagen Caddy 2
- Volkswagen Caddy 3
- Volkswagen Caddy 4
- Volkswagen California
- Volkswagen Caravelle
- Volkswagen Citi
- Volkswagen Commercial
- Volkswagen Concept
- Volkswagen Corrado
- Volkswagen Crafter
- Volkswagen Crafter Ii
- Volkswagen Crossgolf
- Volkswagen Crosspolo
- Volkswagen Crosstouran
- Volkswagen Derby
- Volkswagen Ea
- Volkswagen Ecoracer
- Volkswagen Eos
- Volkswagen Eurovan
- Volkswagen Export
- Volkswagen Fox
- Volkswagen Fusca
- Volkswagen Gli
- Volkswagen Gol
- Volkswagen Gol Ii
- Volkswagen Golf 3
- Volkswagen Golf 4
- Volkswagen Golf 5
- Volkswagen Golf 6
- Volkswagen Golf 7
- Volkswagen Golf 1
- Volkswagen Golf 2
- Volkswagen Gti
- Volkswagen Gx3
- Volkswagen Hac
- Volkswagen Iltis
- Volkswagen Jetta
- Volkswagen Jetta A4
- Volkswagen Jetta A5
- Volkswagen Jetta A6
- Volkswagen K70
- Volkswagen Karmann Cheetah
- Volkswagen Karmann Ghia
- Volkswagen Kombi
- Volkswagen Lt
- Volkswagen Lupo
- Volkswagen Magellan
- Volkswagen Microbus
- Volkswagen Multivan
- Volkswagen New Beetle
- Volkswagen Parati
- Volkswagen Passat
- Volkswagen Passat B5
- Volkswagen Passat B6
- Volkswagen Passat B7
- Volkswagen Passat B8
- Volkswagen Phaeton
- Volkswagen Pickup
- Volkswagen Pointer
- Volkswagen Polo
- Volkswagen Polo 4
- Volkswagen Polo 5
- Volkswagen Quantum
- Volkswagen Rabbit
- Volkswagen Santana
- Volkswagen Saveiro
- Volkswagen Schwimmwagen
- Volkswagen Scirocco
- Volkswagen Scooter
- Volkswagen Sedan
- Volkswagen Sharan
- Volkswagen Sharan 2
- Volkswagen Sp2
- Volkswagen T4
- Volkswagen T5
- Volkswagen T6
- Volkswagen Tiguan
- Volkswagen Touareg
- Volkswagen Touran
- Volkswagen Touran I
- Volkswagen Touran Ii
- Volkswagen Touran Iii
- Volkswagen Transporter
- Volkswagen T-roc
- Volkswagen Type 3
- Volkswagen Type 4
- Volkswagen Up
- Volkswagen Vento
- Volkswagen Voyage
- Volkswagen W12
C3749 Volkswagen Trouble Repair :
The rule of C3749 Volkswagen code when it comes to emissions-related vehicle repair is that any modification that changes the vehicle from a certified configuration to a non-certified configuration is considered tampering: this applies to both vehicle owners and repair facilities and is, therefore, a Federal offense. Replacing a catalyst with a straight pipe is one traditional example. Likewise, overriding the OBD 2 system through the use of high-tech defeat devices or non-certified computer chips, for example, would also be considered tampering. The OBD system may, however, be repaired back to its original certified configuration with certified performance chips or appropriate aftermarket parts.
|
Code Search
Please fill the search bar to find Auto Trouble Code meaning.