1994 Daimler Double SIX 6.0L Petrol · M484 COT
1994 Daimler Double SIX (6.0L, petrol). First registered 01 Nov 1994. Recorded mileage 55,247 miles. MOT expired on 30 Sept 2026. Currently declared SORN.
- Make & Model
- DAIMLER DOUBLE SIX
- Year / Origin
- 1994 · Manchester
- Safety Recall
- Unknown
- MOT Status
- Expired on 30 Sept 2026
- Road Tax
- SORN
- Recorded Mileage
- 55,247 mi
- ULEZ Compliance
- Check Required (Pre-Euro 4 Petrol)
- Fuel & Engine
- PETROL · 6.0L
- Reliability Guide
- Common Faults
Thinking of buying this vehicle? Free MOT and tax checks do not cover legal ownership. If outstanding finance exists, finance companies have legal right to repossess without compensation.
M484 COT Key Findings
- 1 MOT test recorded
- Latest MOT passed on 02/10/2025
- 55,247 miles recorded at latest MOT
- No defects recorded at the latest MOT
Derived directly from the recorded DVSA and DVLA data shown on this page.
M484 COT MOT History
Interpretation generated from the recorded test data above — not an official DVSA statement and not a substitute for an independent inspection.
1 MOT test are recorded for this 1994 Daimler Double Six (M484 COT) between October 2025 and October 2025.
The record contains 1 pass and 0 failures.
The record shows no MOT failures, although 0 advisory notices note items to monitor.
Technical Specifications
Core Specifications
Identification & Status
Dimensions & Weights
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Known faults for Daimler Daimler Double Six
Our database tracks 4 specific mechanical faults and recurring failure patterns identified across UK MOT testing stations for this generation.
MOT Roadworthiness: Average
This rating reflects historical MOT pass rates and recurring advisory wear patterns from official DVSA test logs. Note that roadworthiness does not verify outstanding finance, insurance write-offs, or stolen records.
Verify lender finance agreements, insurance write-offs, police stolen registers, and mileage rollback.
Common Problems: DAIMLER DOUBLE SIX
Known issues reported by owners and MOT testers.
- V12 Engine Valley Fuel Rail Hose Degradation and Engine Bay Fire Risk(Serious)
The 5.3-litre and 6.0-litre V12 engines generate intense under-bonnet heat soak, particularly in the central valley where the fuel injection rail and short rubber injector feed hoses sit. Over time, heat cycles harden the rubber hoses, causing micro-cracking and loss of clamp tension. Modern ethanol-blended UK fuels (E5/E10) accelerate this embrittlement, allowing high-pressure fuel to spray or seep directly onto the distributor, HT leads, and hot exhaust manifolds, causing catastrophic under-bonnet fires. Preventative maintenance requires renewing all fuel rail hoses and injector link pipes with ethanol-rated synthetic hoses (such as Gates Barricade) every five to seven years.
- V12 Cooling System Silt Accumulation, Radiator Furring and Dropped Valve Seats(Serious)
The Jaguar all-aluminium V12 requires meticulous cooling maintenance due to its massive heat output and 20 individual coolant hoses. Neglected coolant changes allow mineral silt and corrosion sediment to clog the lower tubes of the cross-flow radiator and rear cylinder water passages. When localized overheating occurs, the aluminium cylinder head expands faster than the pressed-in steel valve seat inserts. Once press-fit tolerance is lost during extreme heat cycling, a valve seat insert loosens and drops into the combustion chamber, destroying the piston and bending valves. Remedying dropped seats requires an engine-out rebuild and peening or staking replacement inserts.
- Magneti Marelli and Lucas Ignition Amplifier / Distributor Rotor Breakdown(Serious)
Late Daimler Double Six models utilise a Magneti Marelli dual-coil digital ignition system, while earlier cars feature Lucas OPUS or Constant Energy systems. On Marelli-equipped models, high secondary ignition resistance from aged spark plugs or degraded HT leads causes internal electrical arcing through the distributor rotor body directly to the distributor drive shaft. This burns a pinhole through the rotor, killing spark to an entire six-cylinder bank. Because the fuel injectors continue spraying fuel into the dead cylinders, raw petrol floods into the catalytic converter, causing it to overheat, glow red-hot, and ignite underbody fires. Regular rotor and cap renewal is mandatory.
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DAIMLER DOUBLE SIX Model Intelligence & Reliability
Verified MOT failure trends, buying advice, and technical directory specifications.
Owner-reported defects, recurring MOT failure points, and estimated repair costs.
Browse production generations, registration statistics, and trim variants.
Historical MOT pass rates and DVLA records for 1994 model year cars.
- V12 Engine Valley Fuel Rail Hose Degradation and Engine Bay Fire RiskSerious
The 5.3-litre and 6.0-litre V12 engines generate intense under-bonnet heat soak, particularly in the central valley where the fuel injection rail and short rubber injector feed hoses sit. Over time, heat cycles harden the rubber hoses, causing micro-cracking and loss of clamp tension. Modern ethanol-blended UK fuels (E5/E10) accelerate this embrittlement, allowing high-pressure fuel to spray or seep directly onto the distributor, HT leads, and hot exhaust manifolds, causing catastrophic under-bonnet fires. Preventative maintenance requires renewing all fuel rail hoses and injector link pipes with ethanol-rated synthetic hoses (such as Gates Barricade) every five to seven years.
- V12 Cooling System Silt Accumulation, Radiator Furring and Dropped Valve SeatsSerious
The Jaguar all-aluminium V12 requires meticulous cooling maintenance due to its massive heat output and 20 individual coolant hoses. Neglected coolant changes allow mineral silt and corrosion sediment to clog the lower tubes of the cross-flow radiator and rear cylinder water passages. When localized overheating occurs, the aluminium cylinder head expands faster than the pressed-in steel valve seat inserts. Once press-fit tolerance is lost during extreme heat cycling, a valve seat insert loosens and drops into the combustion chamber, destroying the piston and bending valves. Remedying dropped seats requires an engine-out rebuild and peening or staking replacement inserts.
- Magneti Marelli and Lucas Ignition Amplifier / Distributor Rotor BreakdownSerious
Late Daimler Double Six models utilise a Magneti Marelli dual-coil digital ignition system, while earlier cars feature Lucas OPUS or Constant Energy systems. On Marelli-equipped models, high secondary ignition resistance from aged spark plugs or degraded HT leads causes internal electrical arcing through the distributor rotor body directly to the distributor drive shaft. This burns a pinhole through the rotor, killing spark to an entire six-cylinder bank. Because the fuel injectors continue spraying fuel into the dead cylinders, raw petrol floods into the catalytic converter, causing it to overheat, glow red-hot, and ignite underbody fires. Regular rotor and cap renewal is mandatory.
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