S3 Chassis Info

The chassis number for these models is composed of an initial fixed letter B followed by a number from 1 to 828 and finally two letters, of which the first determines the model series.

Left hand drive models have an L preceding the last two letters.

The chassis number can be found on a plate attached to the engine compartment bulkhead.

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Release Date	Chassis Number	Modification Detail	introduced at Chassis:
Oct 1962	B2AV to B26AV	Lengthened starter relay cable	B16AV
Sep 1962 - Oct 1963	B2CN to B828CN	Air conditioning unrtwatertaps and mounting plates	B10CN
		Improved radiator pressure relief valve	B176LCN
		Additional sight glass on C61 refrigerated units and re-routed low pressure hoses on right hand drive cars	B260CN
		Top and bottom hoses	B388CN
		Stainless steel wheel discs	B404CN
		Steering box modified to allow trapped air to be bled	B420CN
		Windscreen wiper stops for positive parking	B496LCN
		Carburettors with modified float chamber lid and needle valve	B508CN
		Automatic gearbox torus cover	B172CN (except B724CN)
		Hand brake cable systems on right hand drive cars	B738CN
Sep 1963 - Dec 1963	B2DF to B198DF	Steering hose re-router and heat shield flitted to steering box mounting arm on left hand drive cars	B30LDF
		Improved heated rear window glass	B126DF
Nov 1963 - Jun 1964	B2EC to B530EC	New voltage regulator	B38EC
		Improved rear seat and side arm rests	B70EC
		Heat shield fitted to right--hand exhaust manifold	B210EC
		Choke introduced into reversing light circult	B222EC
		Increased bore of carburettor vent pipes	B340EC (except B368, 412 and 491EC)
		Reversing and rear number plate lamp	B412EC
		Wider rims on rear wheels	B484EC
		Additional cold air intake controls	B506EC
May 1964 - Dec 1964	B2FG to B350FG	Dynamo bracket	B8FG
		Flywheel housing - bell housing underpan flitted (except export models to tropical or dusty countries)	B12FG (except B18FG)
		Steering box spool valve and housing	B116FG
		Stop/flasher relays discontinued, link strip in place of starter solenoid cable	B152FG
		New speedometer and flexible drive	B206FG
		Steering - modified power cylinder head	B222FG
		Improved copper type battery cable	B290FG
		Steering hoses re-routed on right hand drive cars	B348FG
Oct 1964 - Jan 1965	B2GJ to B200GJ	New HT ignition cables with resistive cores	B10GJ
		Electrically-operated windows stop bracket	B126GJ
		Tappet block and tappet block assemblies	B136GJ
		Ventilation holes provided to flywheel housing bell housing	B190GJ
Jan 1965 - Jul 1965	B2HN to B400HN	Camshaft	B34HN
Jul 1965 - Sep 1965	B2JP to B40JP	Interference ht cylinder liners	B2JP
		New fuel pump, SU type AUF 400	B36JP