Major Aggregate Repairs Terms and Conditions
Ruan Service Group Pty Ltd T/A Car One Automotive (ABN 85 668 633 305) | Ruan Service Group Hendra (ABN 69 678 960 382)
Last updated: 19-06-2026.
These Major Aggregate Repairs Terms and Conditions (“Terms”) apply specifically to all major aggregate repairs carried out by Car One Automotive (Ruan Service Group ABN 85 668 633 305 and Ruan Service Group Hendra ABN 69 678 960 382), hereafter referred to as “the Business”, “Car One Automotive”, “we”, “us”, or “our”.
These Terms are to be read in conjunction with the Business General Terms and Conditions and form part of the entire agreement between the Customer and the Business. By authorizing major aggregate repairs, the Customer acknowledges and agrees to be bound by these Terms.
1. Scope of Major Aggregate Repairs
Major aggregate repairs include, but are not limited to:
- Engine replacements and engine rebuilds;
- Cylinder head repairs;
- Transmission and gearbox replacements or rebuilds;
- Differential and transfer case repairs;
- Turbocharger replacements;
- Hybrid system major component repairs; and
- Any repair requiring substantial dismantling of the vehicle.
2. Estimates and Quotations
All estimates provided for major aggregate repairs are estimates only and are based on visible and preliminary inspection findings.
The Customer acknowledges that internal engine, transmission, drivetrain, electrical, or mechanical damage may not become apparent until dismantling has commenced. The Business reserves the right to revise estimates where additional faults, wear, damage, contamination, or non-serviceable components are discovered during dismantling or inspection.
The Customer authorizes the Business to dismantle, inspect, and diagnose the aggregate for the purposes of determining repairability and required repairs. Should additional repairs or parts be required, the Customer will be contacted for further authorization prior to proceeding.
If the Customer elects not to proceed after dismantling or diagnosis has commenced, the Customer remains liable for:
- Diagnostic charges;
- Labour already completed;
- Reassembly costs (where applicable);
- Storage fees; and
- Any parts ordered specifically for the vehicle.
3. Used, Reconditioned and Aftermarket Components
The Customer acknowledges that depending on availability, pricing, vehicle age, or manufacturer restrictions, the Business may supply:
- Used components;
- Reconditioned components;
- Aftermarket components; or
- Rebuilt components.
Unless otherwise specified in writing, the Business does not guarantee that replacement engines, gearboxes, or other aggregates supplied are brand new. Used components may contain normal wear and tear consistent with their age and kilometers travelled. Where a used engine, gearbox, or aggregate is supplied, kilometer readings are approximate only and cannot always be independently verified.
4. Pre-Existing Conditions
The Customer acknowledges that major aggregate failure may cause or contribute to additional failures throughout the vehicle, including but not limited to: cooling system contamination, electrical faults, ECU faults, wiring damage, oil leaks, fuel system contamination, DPF or catalytic converter damage, turbocharger damage, driveline vibration, or suspension/mount deterioration.
The Business will not be liable for faults arising from pre-existing wear, prior overheating, lack of maintenance, sludge build-up, contamination, or operation of the vehicle after the original fault occurred.
The Business will not be responsible for failures caused by:
- Improper prior repairs or inconsistent/improper servicing;
- Customer-supplied parts;
- Undisclosed vehicle history, accident damage, or flood damage; and
- Neglect or continued operation after warning indicators appeared.
5. Customer-Supplied Parts
Where the Customer requests the use of customer-supplied parts, the Business:
- Provides no warranty whatsoever on those parts;
- Accepts no responsibility for quality, compatibility, or lifespan; and
- Will not be liable for any consequential damage arising from the failure of those parts.
Labour associated with the replacement of failed customer-supplied parts will be fully chargeable to the Customer.
6. Additional Recommended Parts
During major aggregate repairs, the Business may recommend replacement of additional components including but not limited to: seals and gaskets, water pumps, timing components, thermostats, hoses and pipes, engine mounts, coolant reservoirs, filters and fluids, turbo oil lines, spark plugs, or glow plugs.
Where the Customer declines recommended repairs or replacement items, the Business will not be liable for any future failures relating to those declined items. The Customer acknowledges that failure to replace recommended associated components may result in repeat labour costs, fluid leaks, overheating, or premature failure of the repaired aggregate.
7. Warranty
Unless otherwise stated in writing, warranty on major aggregate repairs is strictly limited to 3 months or 5,000 kilometres on labour, or the warranty provided by the supplier or rebuilder on supplied components (whichever occurs first).
Warranty applies only where:
- The vehicle has been properly maintained with fluids remaining at correct levels;
- No overheating occurs;
- The vehicle has not been abused, raced, overloaded, or neglected; and
- Any required servicing is completed strictly on time.
Warranty does not apply where:
- The vehicle continues to be driven after warning lights or abnormal symptoms appear;
- The vehicle overheats for any reason and is not stopped immediately;
- The Customer fails to maintain proper oil and/or coolant levels;
- The failure relates to unrelated vehicle systems or third-party modifications/interference;
- Failures arise from custom tuning or performance modifications; or
- Existing contamination or wear causes subsequent damage.
The Business’s liability is strictly limited to the rectification of the original repair work performed by the Business. The Business will not be liable for loss of income, towing costs (unless approved by us), rental vehicle costs, accommodation, loss of business use, emotional distress, or any other indirect or consequential damages.
8. Used Engine and Gearbox Warranty Conditions
Where a used engine or gearbox is supplied, warranty is strictly limited to the supplied component only. Unless an item in question has been explicitly replaced by the Business, the warranty does not cover:
- Oil leaks or sweating seals;
- Minor noises, sensors, or electrical components;
- Turbochargers (unless specifically included in writing);
- Ancillary components transferred from the original engine;
- Labour for unrelated failures; and
- Warning lights occurring due to declined additional recommended repairs listed in Clause 6.
Used components are supplied based on supplier assessment and availability, and may have an unknown service history.
9. Breakdown and Warranty Claim Procedure
If a problem arises after repairs have been completed:
- The Customer must stop driving the vehicle immediately where safe to do so;
- The Customer must notify the Business immediately; and
- No third party is authorised to dismantle or repair the vehicle without prior written consent from the Business.
Failure to follow this process may completely void warranty consideration. The Business reserves the right to inspect the vehicle before approving any warranty claim.
10. Storage and Uncollected Vehicles
Vehicles undergoing major repairs may occupy workshop space for extended periods. Storage fees may apply to completed vehicles not collected within 48 hours of notification that repairs are complete. Storage charges may also apply where the Customer delays approval decisions or vehicle collection.
11. Customer Acknowledgement
The Customer acknowledges and agrees that:
- Major aggregate repairs are highly complex in nature and hidden defects may exist;
- Additional failures may arise during or after repairs, and no repair can guarantee prevention of all future failures;
- Older or high-kilometer vehicles carry an increased risk of component failure; and
- Vehicle downtime estimates are approximate only, as parts availability and machining delays are outside the Business’s reasonable control.
The Customer authorizes the Business to carry out all works approved verbally, electronically, by text message, email, or signed Job Card.
12. Governing Law and Jurisdiction
These Terms and Conditions are governed by the laws of the State of Queensland. Any dispute arising from these Terms shall be subject to the exclusive jurisdiction of the courts of Queensland.
Customer Acknowledgement
By authorizing repairs or signing the Job Card, I acknowledge that:
- I have read and understood these Major Aggregate Repairs Terms and Conditions.
- I agree to be bound by these Terms and Conditions.
- I understand my responsibilities regarding vehicle use, diagnostic fees, customer-supplied parts, warranty conditions, and payment obligations.
- I consent to the collection and use of my information in accordance with these Terms and the Privacy Policy.
