| Description | Date | Identifier | |
| Faulty horn's 'tinny and muzzy note' caused by a loose cover. | 30th Jun 1936 | Box 107 \ 1 scan0397 | |
| Supply of special hub withdrawal tools for the Junior Car Club Tour. | 30th Jun 1936 | Box 107 \ 1 scan0398 | |
| Whether to send a spare petrol pump for a car in the J.C.C. Rally due to recent complaints. | 1st Jul 1936 | Box 107 \ 1 scan0399 | |
| Confirming agreement to include a spare petrol pump for a car participating in the J.C.C. Rally. | 3rd Jul 1936 | Box 107 \ 1 scan0400 | |
| Car modifications, including moving the petrol filter, petrol pump issues, and changing the gearbox. | 9th Jul 1936 | Box 107 \ 1 scan0401 | |
| Modifications to a car's petrol filter, pump, and gearbox. | 9th Jul 1936 | Box 107 \ 1 scan0402 | |
| The steering on the Continental Demonstrator, Chassis No. GUL-4. | 14th Sep 1936 | Box 107 \ 1 scan0403 | |
| Correspondence regarding Chassis No. GUL.4, the Continental Demonstrator. | 15th Sep 1936 | Box 107 \ 1 scan0404 | |
| From 'Sg' to 'Hs/Rm' regarding the underpowered, non-standard engine in car GLG-5 and a request for a new one. | 7th Jun 1936 | Box 107 \ 1 scan0405 | |
| Completing tests to improve slow running on the 20/25 model and replacing a unit with the next standard 25/30 Wraith unit. | 19th Sep 1936 | Box 107 \ 1 scan0406 | |
| Instruction to fit components to a rig steering box and to modify a distance piece. | 10th Oct 1936 | Box 107 \ 1 scan0407 | |
| Inquiry regarding the fitment of 'L' shape piston rings to Trials Car GUL.1. | 19th Oct 1936 | Box 107 \ 1 scan0408 | |
| Return of a set of K.L.G. plugs for Chassis No. GUL-59. | 24th Oct 1936 | Box 107 \ 1 scan0409 | |
| Storage of a dismantled silencer for chassis GLG-23. | 9th Nov 1936 | Box 107 \ 1 scan0410 | |
| Arranging exhaust boom tests and engine decarbonising for trials car GUL-1. | 9th Nov 1936 | Box 107 \ 1 scan0411 | |
| Confirming the status of the London Trials Car GUL-1, its readiness for collection, and pending decarbonization. | 19th Nov 1936 | Box 107 \ 1 scan0412 | |
| Follow-up memo regarding the London Trials for car GUL-1. | 19th Nov 1936 | Box 107 \ 1 scan0413 | |
| Requesting GUL 1 be sent to the Repair Department for collection following its trials. | 19th Nov 1936 | Box 107 \ 1 scan0414 | |
| Scheduling of car 3-AZ-38 for 'London Trials' involving the fitting of rubber between the axle and springs. | 25th Nov 1936 | Box 107 \ 1 scan0415 | |
| Sending a car to Derby for a new unit installation, with handwritten notes about timings and springs. | 9th Dec 1936 | Box 107 \ 1 scan0416 | |
| Service history and engine alteration details for chassis No. GLG 5. | 15th Dec 1936 | Box 107 \ 1 scan0417 | |
| Instructing modifications to 'Sg's Car', including fitting a propeller shaft damper and setting clutch fingers. | 15th Dec 1936 | Box 107 \ 1 scan0418 | |
| 25/30 HP car with a new engine unit, expressing dissatisfaction and requesting its return for further work. | 23th Dec 1936 | Box 107 \ 1 scan0419 | |
| Unsatisfactory engine performance issues including spitting, overheating, and running backwards. | 29th Dec 1936 | Box 107 \ 1 scan0420 | |
| Faults found on a 25/30 HP car, specifically concerning the timing gears, tappets, and carburetter. | 6th Jan 1937 | Box 107 \ 1 scan0421 | |
| Persistent engine running-on complaint after fitting a special camshaft to a 25/30 HP car. | 8th Jan 1937 | Box 107 \ 1 scan0422 | |
| Comparing the performance of a car fitted with an anti-rolling rod (GAE-20) against a standard model. | 11th Jan 1937 | Box 107 \ 1 scan0423 | |
| Post Office telegram reporting that Mr Sidgreaves' car has not arrived at Lillie Hall. | 1st Sep 1937 | Box 107 \ 1 scan0424 | |
| The return of a 25/30 car. | 11th Jan 1937 | Box 107 \ 1 scan0425 | |
| Telegram received by telephone regarding a car that has not arrived. | 22th Jan 1937 | Box 107 \ 1 scan0426 | |
| Telegram received by telephone concerning a car that has not arrived. | 12th Jan 1937 | Box 107 \ 1 scan0427 | |
| Customer opinions from Cricklewood on controversial suspension parts (GAE.20). | 12th Jan 1937 | Box 107 \ 1 scan0428 | |
| Chassis conference and the positioning of a car's roll rod. | 13th Jan 1937 | Box 107 \ 1 scan0429 | |
| The persistent 'running after switching off' problem on a 25/30 car, leading to the decision to fit a completely new engine unit. | 13th Jan 1937 | Box 107 \ 1 scan0430 | |
| Faults and repairs for a 30 HP car, model GLG-5, including issues with timing gears, spitting, and back-firing. | 18th Jan 1937 | Box 107 \ 1 scan0431 | |
| Investigation into a 'back firing' engine trouble, detailing parts changed and the results. | 18th Jan 1937 | Box 107 \ 1 scan0432 | |
| Daily log of engine modifications and test results with a series of changes yielding no improvement. | 18th Jan 1937 | Box 107 \ 1 scan0433 | |
| Log of engine tests detailing modifications to the cylinder head and block, and their results. | 18th Jan 1937 | Box 107 \ 1 scan0434 | |
| Conclusions from tests on engine backfiring related to ignition and throttle settings. | 22th Jan 1937 | Box 107 \ 1 scan0435 | |
| Letter to Lodge Plugs Limited regarding poor petrol consumption and arranging for the car to be inspected. | 22th Jan 1937 | Box 107 \ 1 scan0436 | |
| Letter from Lodge Plugs Limited requesting advice on improving the fuel consumption of a 20/25 model car. | 19th Jan 1937 | Box 107 \ 1 scan0437 | |
| Missing parts from an engine unit supplied for Sg.'s Car. | 22th Jan 1937 | Box 107 \ 1 scan0438 | |
| Car being sent to Thrupp and Maberly instead of Lillie Hall. | 22th Jan 1937 | Box 107 \ 1 scan0439 | |
| Investigating when damage occurred to a car's door before delivery to the coachbuilders. | 27th Jan 1937 | Box 107 \ 1 scan0440 | |
| From Sg to Rm regarding pre-existing damage to a car's wing and a receipt from Thrupp & Maberly. | 28th Jan 1937 | Box 107 \ 1 scan0441 | |
| Checklist of a car's condition and inventory upon being handed in for service or repair. | 21th Nov 1937 | Box 107 \ 1 scan0442 | |
| Arranging the handover of car GWN-8 to 'St.' to replace an old 20/25 model after an investigation. | 6th Jul 1937 | Box 107 \ 1 scan0443 | |
| Reported issues and recommended work for the 25/30 HP Trials Car GWN.8. | 6th Jul 1937 | Box 107 \ 1 scan0444 | |
| On the service dates and 'L' shaped rings for two 25/30HP London Trials Cars. | 7th Jul 1937 | Box 107 \ 1 scan0445 | |
| Request to replace the clutch facing on Chassis G.A.N.54, a sales trials car. | 29th Jul 1937 | Box 107 \ 1 scan0446 | |
| Bad clutch on car GAN-54 from the London Trials, requesting an investigation and permanent fix. | 27th Jul 1937 | Box 107 \ 1 scan0447 | |
| Requesting the removal of a clutch plate from chassis G.A.N.54 for the fitting of a Ferodo facing. | 29th Jul 1937 | Box 107 \ 1 scan0448 | |
| Oil-covered clutch on car GAN-54 during the London Trials, with recommendations for observation. | 30th Jul 1937 | Box 107 \ 1 scan0449 | |
| Inquiring about the return of car GAN-54 from the London Trials and the reason for its clutch replacement. | 30th Jul 1937 | Box 107 \ 1 scan0450 | |
| The process of making experimental chassis GAE-20 saleable. | 30th Jul 1937 | Box 107 \ 1 scan0451 | |
| The handover of car GAE.20 to the Repair Department for specification assessment. | 30th Jul 1937 | Box 107 \ 1 scan0452 | |
| Replacement of a bad clutch on Trials Car GAN.54 with new Ferodo S.6777 facings. | 31th Jul 1937 | Box 107 \ 1 scan0453 | |
| Chassis number GAE-20, requesting it as early as possible. | 16th Aug 1937 | Box 107 \ 1 scan0454 | |
| Preparation and costing of an experimental car, GAE-20, before it is offered for sale. | 4th Aug 1937 | Box 107 \ 1 scan0455 | |
| Request to return specific experimental parts from a car before its disposal. | 21th Aug 1937 | Box 107 \ 1 scan0456 | |
| Performance data from tests at Brooklands comparing two cars with various wheel and tyre setups. | 6th Aug 1937 | Box 107 \ 1 scan0457 | |
| Typed memorandum concerning tyre and exhaust noise issues on the 25/30 HP Trials Car GWN-2. | 28th Sep 1937 | Box 107 \ 1 scan0458 | |
| Fitting of a cheaper edition carburetter to transport car GBJ 52. | 30th Sep 1937 | Box 107 \ 1 scan0459 | |
| Tyre wear and noise issues on a 25/30 HP trials car (GWN-2), with a proposal for an exhaust system test. | 4th Oct 1937 | Box 107 \ 1 scan0460 | |
| Tyre wear with Dunlops and arranging an exhaust silencer test during a show. | 6th Oct 1937 | Box 107 \ 1 scan0461 | |
| Arranging to listen to the exhaust system on a 25/30 Trials Car GWN.2. | 8th Oct 1937 | Box 107 \ 1 scan0462 | |
| Short memo confirming travel arrangements for a meeting in Kettering. | 6th Oct 1937 | Box 107 \ 1 scan0463 | |
| Confirming arrangements for a trials car. | 9th Oct 1937 | Box 107 \ 1 scan0464 | |
| Confirming an arrangement to pick up a car at Lillie Hall and deliver it to an address in Kensington. | 12th Oct 1937 | Box 107 \ 1 scan0465 | |
| Cancelling a previous arrangement and rescheduling a trip to London to test trials car GWN.2 for exhaust noises and tyres. | 13th Oct 1937 | Box 107 \ 1 scan0466 | |
| Confirming a change of appointment day and requesting confirmation of time for two cars. | 15th Oct 1937 | Box 107 \ 1 scan0467 | |
| Confirming an appointment time for two cars, GWN-2 and P.III. | 16th Oct 1937 | Box 107 \ 1 scan0468 | |
| Request for a report on the performance of a clutch with Ferodo facings in Trials Car GAN.54. | 4th Nov 1937 | Box 107 \ 1 scan0469 | |
| The performance of a clutch in Trials Car GAN-54. | 6th Nov 1937 | Box 107 \ 1 scan0470 | |
| Providing the agenda for an upcoming Service Complaints Conference. | 15th Oct 1937 | Box 107 \ 2 scan0001 | |
| Agenda for a conference on service complaints regarding Phantom III boiling and petrol pump issues. | 26th Oct 1937 | Box 107 \ 2 scan0002 | |
| Vehicle faults such as clutch jaggers, overoiling, and steering wobbles, along with proposed cures and actions. | 13th Jun 1936 | Box 107 \ 2 scan0003 | |
| Faults and their proposed or implemented solutions for various vehicle components, including the Phantom III model. | 13th Jun 1936 | Box 107 \ 2 scan0004 | |
| Notice on testing new metallic clutch facings for the 20/26 clutch, also applicable to 3 1/2 Litre Bentley clutches, to address 20/25 model complaints. | 13th Jun 1936 | Box 107 \ 2 scan0005 | |
| List of complaints for the 25/30 model and the corresponding factory responses and proposed actions. | 13th Jun 1936 | Box 107 \ 2 scan0006 | |
| Testing of Thermoid facings on the 25/30 Clutch to eliminate clutch jaggers. | 13th Jun 1936 | Box 107 \ 2 scan0007 | |
| Bentley complaints regarding main bearing, rear wheel driving dog, and noisy axle issues. | 13th Jun 1936 | Box 107 \ 2 scan0008 | |
| Bentley axle failures and brake squeaks, including proposed solutions. | 13th Jun 1936 | Box 107 \ 2 scan0009 | |
| Note expressing disappointment that Depots have not provided feedback regarding design inaccessibility. | 21th Jun 1938 | Box 107 \ 2 scan0010 | |
| Blueprint showing a modification to a cross-steering tube end for more even load distribution. | 21th Jun 1938 | Box 107 \ 2 scan0011 | |
| General chassis data comparison for the Phantom III, Bentley, and Wraith III models. | 9th Jun 1938 | Box 107 \ 2 scan0012 | |
| Throttle spring issues and linkage complexity for SO carburettors. | 5th Apr 1939 | Box 107 \ 2 scan0013 | |
| Issues with throttle springs and linkages on S.U. Carburetters. | 5th Apr 1939 | Box 107 \ 2 scan0014 | |
| Complaint report regarding a fractured thrust race cage on an axle. | 6th Apr 1939 | Box 107 \ 2 scan0015 | |
| Confirming satisfactory experimental features fitted to customer's cars are to be standardised for future production. | 10th Feb 1939 | Box 107 \ 2 scan0016 | |
| Depot complaints regarding ignition, horn, and valve issues on Wraith and Phantom III models. | 21th Feb 1939 | Box 107 \ 2 scan0017 | |
| Issues with headlamps and carburettors on various car models. | 21th Feb 1939 | Box 107 \ 2 scan0018 | |
| Discussion of customer complaints and service depot criticisms for the Phantom III chassis. | 10th Oct 1938 | Box 107 \ 2 scan0019 | |
| Reliability issues and design improvements for various vehicle components. | 10th Oct 1938 | Box 107 \ 2 scan0020 | |
| Report page detailing issues with exhaust suspension, oil filters, general suspension, and tyres. | 10th Oct 1938 | Box 107 \ 2 scan0021 | |
| Issues and improvements for tyres, steering, suspension, and wiring. | 10th Oct 1938 | Box 107 \ 2 scan0022 | |
| Technical memo discussing issues and solutions for an oil filler, drain plug, fan bearings, and carburetter connection. | 10th Oct 1938 | Box 107 \ 2 scan0023 | |
| Summary of issues and recommendations for the 25/30 HP chassis, covering engine, servo, brakes, and exhaust. | 10th Oct 1938 | Box 107 \ 2 scan0024 | |
| Various Bentley component failures including axle bearings, brakes, silencer rattle, and engine bearings. | 10th Oct 1938 | Box 107 \ 2 scan0025 | |
| Technical notes on oil flow test rigs for 4¼ litre engines and rattles in steering column controls. | 25th Aug 1938 | Box 107 \ 2 scan0026 | |
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