An Australian search for a Mercedes M278 camshaft adjuster can return intake parts, exhaust parts, individual gears and larger packages on the same page. For a workshop requesting the left intake component under A2780505000, those are not equivalent shopping options. The most useful enquiry names the engine, the camshaft position and the required reference before it asks about price or delivery.
RunningRoo currently lists an intake left camshaft adjuster with A2780505000 as its principal reference. This guide explains how to turn that listing into a precise parts request. Review M278 left intake camshaft adjuster Australia at RunningRoo, compare matching RunningRoo eBay listing, or call 0425 890 125. RunningRoo is Australian-operated and based in Blackburn, Melbourne, offering friendly support, local pickup by appointment and fast dispatch for confirmed available stock.
Keep left intake separate from right exhaust
The central distinction in this article is the left intake position. Existing information about an M157 or M278 right exhaust adjuster does not answer this purchasing question. A different position in a product title should be treated as a different requirement until the applicable parts information proves otherwise. Do not use visual similarity between cam gears as an interchange rule.
Ask the workshop to write the intended position on the estimate and parts request. If a photograph accompanies the request, label it using the manufacturer’s identification rather than “left in the picture”. The supplier should not have to infer vehicle orientation from the direction the camera was facing. This is particularly useful when several components are on the bench together.
If a workshop requests multiple adjusters, create one line per position, with the reference and quantity beside it. The left intake item can then be checked against this offer without assuming the remaining positions use the same reference. A clearly separated list also makes the delivery check easier for the technician who will install the parts.
What A2780505000 means in this offer
The RunningRoo page identifies A2780505000 as the manufacturer and OE/OEM reference and lists A2780501947 and A2780503500 in its superseded-reference field. These are useful seller cross-references to raise during a fitment check. They are not an independent confirmation of a universal replacement chain for every vehicle carrying an M278 engine.
Provide the VIN and actual engine identification, then ask the supplier to check the proposed item against the workshop’s requirement. If the old component has an earlier marking, send a clear photograph rather than assuming that the latest-looking number must replace it. A proper enquiry can distinguish a documented replacement reference from a mistaken digit or an unrelated component.
The offer’s title mentions GLS550. Australian vehicle naming and overseas listing titles should not be treated as a complete application catalogue. A matching engine description alone does not establish every production detail. Have the vehicle-specific requirement confirmed and avoid expanding the title into an unsupported list of Australian models and years.
Confirm the package before calling it a repair kit
This listing describes a camshaft adjuster, not a complete timing system package. Its item-specific field for included items does not establish additional hardware. Ask for a current written packing list rather than assuming that fasteners, seals, control components or other timing parts are supplied with the main component.
A workshop may need additional materials to complete its procedure. Those should appear separately on the estimate unless the seller explicitly confirms they are included. This matters when comparing offers: the advertised price of an individual adjuster and the price of a larger repair package cannot be compared fairly until the contents have been aligned.
The seller identifies the brand as RunningRoo and describes a new steel component. Do not interpret the OE reference as a claim that the supplied item is Mercedes-branded genuine stock. If the workshop has a specific purchasing requirement, tell the supplier before ordering. Product identity, provenance and the intended application should all be understood in the same way by the owner, workshop and seller.
| Question | Information to obtain | Reason it matters |
|---|---|---|
| Which position is required? | Written left intake identification | Prevents confusion with existing right exhaust guides |
| Which engine is installed? | VIN plus actual engine identity and relevant history | Avoids relying only on a vehicle badge |
| Which reference is applicable? | Workshop requirement and confirmed seller cross-reference | Resolves earlier numbers without assuming universal interchange |
| What is supplied? | Current written packing list and quantity | Separates the adjuster from other repair materials |
| What does the workshop include? | Diagnosis, installation and completion-check scope | Makes estimates comparable |
| When can the item be supplied? | Stock confirmation, collection appointment or dispatch details | Prevents planning labour around assumed availability |
Separate a diagnostic result from a symptom description
Daimler’s LI05.10-P-056435 bulletin addresses a documented start-up rattle mechanism involving secondary-chain tensioners in specified engine ranges, including M278. Its applicability depends on engine details; it is not a general instruction to replace a left intake adjuster. See Daimler LI05.10-P-056435 version 9: start-up rattle. For a buyer, the important distinction is between recognising a complaint and identifying the component required to repair it.
Ask the workshop what evidence supports the left intake recommendation on this vehicle. The answer should relate to the actual inspection and applicable manufacturer information, not simply to a commonly discussed symptom online. A general cam-phaser video can help explain terminology, but it cannot establish that a particular aftermarket item will correct an individual car’s fault.
Keep records of the original complaint, the repairer’s finding and the final parts request. They serve different purposes. The owner’s description tells the workshop what happened; the diagnostic finding explains the proposed work; the parts request tells the supplier what must be supplied. Combining all three into “engine rattles, send gear” loses the information needed for a reliable purchase.
Build a complete enquiry without unnecessary guesswork
A concise but useful enquiry contains the VIN, model and build information, actual engine code or identification, the required left intake position, and the relevant OE reference. Include the RunningRoo link and state whether the workshop is requesting one component or several individually identified parts. If there is uncertainty, name it directly.
For example, the unresolved point might be an earlier reference on the removed component or a previous engine replacement. Those details should be disclosed before the order is confirmed. It is better to ask a specific question than to fill the gap with a model list copied from another seller’s advertisement. Different offers can use different levels of application detail.
Use M278 left intake camshaft adjuster Australia at RunningRoo and matching RunningRoo eBay listing as the exact references in the conversation, then call 0425 890 125 if the team needs more context. RunningRoo’s friendly Australian support can help coordinate identification and supply questions. The workshop remains responsible for deciding whether the component is needed and for following the correct repair procedure.
Compare quotes on scope, not just the component price
An estimate can include diagnosis already performed, the proposed installation and further work that may become necessary after inspection. Ask for these to be distinguishable. This does not require an unrealistic minute-by-minute breakdown; it requires enough clarity to know what you are approving and which parts the quoted amount covers.
If two workshops recommend different quantities, ask each to explain its proposed scope. Do not resolve the disagreement by ordering the largest package available online. Equally, do not remove a required component from the plan simply because an individual part looks less expensive. The purchase should follow the agreed repair, with additional work authorised on its merits.
Request confirmation of how supplied parts will be checked before installation. Some workshops have specific arrangements for customer-supplied components, and those arrangements should be understood before delivery. Keeping the supplier’s product terms and the workshop’s labour arrangements clear reduces confusion if the supplied item needs clarification or the inspection changes the repair plan.
Plan supply for a Melbourne or interstate workshop
Blackburn pickup by appointment can be convenient for Melbourne customers once the exact item and stock are confirmed. Agree who will collect, the order reference and the collection time. If the workshop is collecting directly, make sure it has the same part description and position information that you used when ordering.
For interstate delivery, provide the postcode and ask about current dispatch arrangements for this confirmed offer. Fast dispatch is a service for available stock, not a universal carrier-delivery promise. A workshop booking should allow for the actual fulfilment plan and for any outstanding fitment question to be resolved before the vehicle is committed to the job.
If several parts are required, ask whether they will be supplied together or separately. An order can be commercially complete while one item still has a different expected arrival. Understanding that distinction helps the workshop decide when it can begin and prevents an individual left intake adjuster from being mistaken for the last missing item without checking the rest of the order.
What to check when the component arrives
Match the supplied item and paperwork to the confirmed order before installation. Check the reference, quantity and intended position with the workshop, and retain the packaging while any question is resolved. If the component appears inconsistent with the agreement, contact the supplier rather than trying to alter it to resemble the removed part.
The editorial cover in this guide is not a technical drawing, a dimensional specification or a photograph of the exact supplied unit. Use the real retailer photographs for product context and the confirmed written information for the order. The workshop should use the actual component and manufacturer information for its final application and installation checks.
This article does not publish timing-alignment values, tightening specifications, locking-tool arrangements or an adaptation sequence. Those details require the exact engine and the complete applicable procedure. A short general video should never be promoted into a substitute workshop instruction simply because it uses the term VVT or cam phaser.
Retain a useful repair record
Ask for a final invoice that identifies the left intake component and its supplied reference. If other positions were repaired at the same time, have them listed separately. This gives future technicians a much clearer history than a single line reading “cam gears”, especially when the vehicle later changes owners.
Keep the fitment confirmation and parts invoice with the workshop record. If the order involved an earlier reference, save the explanation of how the supplied item was checked. That information can prevent the same uncertainty from recurring when the car next needs work or when another supplier is asked to identify a previously fitted part.
At handover, ask what was checked to confirm completion of the agreed repair. The answer should relate to the original complaint and the workshop’s procedure, without creating a promise that no other engine issue can ever occur. A documented repair addresses the identified work; it is not a blanket guarantee about every component in the engine.
Frequently asked questions
Is this the same item as an M278 right exhaust adjuster?
No interchange should be assumed. This guide concerns the seller’s left intake A2780505000 offer. Ask the workshop to identify the required position and reference using the applicable vehicle information. Existing right exhaust product guides have a different purchase scope.
Can A2780501947 or A2780503500 be used to identify the replacement?
Those numbers appear in the checked seller’s superseded-reference field. Supply the exact old marking, VIN and engine details so the proposed replacement can be confirmed. Their appearance in a listing is useful enquiry information, but it is not a universal fitment approval.
Does the GLS550 wording cover my Australian Mercedes model?
The title is not a complete Australian application catalogue. Provide the actual vehicle and engine identification and request confirmation against the workshop’s part requirement. Do not infer compatibility solely from similar model names, engine capacity or an overseas seller’s broader application list.
Are bolts, seals and other installation parts included?
The checked listing does not establish an additional hardware package. Ask for the current written contents and have the workshop specify separately required materials. Treat the offer as an individual component enquiry until the quantity and contents have been confirmed.
Can a video diagnose the correct adjuster for my car?
A related video can explain a component concept or show a general mechanism. It does not identify this vehicle’s cause or establish the left intake requirement. Use professional diagnosis and the relevant manufacturer information before ordering a specific adjuster.
How do I arrange Melbourne collection?
Contact RunningRoo with the confirmed part request, obtain stock confirmation and book a Blackburn pickup appointment. For Australian delivery, provide the postcode and ask about dispatch and transit separately. Clear identification should be completed before the order is treated as ready for supply.
Buy the left intake item against a confirmed requirement
Review M278 left intake camshaft adjuster Australia at RunningRoo and the matching matching RunningRoo eBay listing, then call 0425 890 125 with your VIN, engine identity and OE reference. RunningRoo combines Australian-operated friendly support with Melbourne local pickup by appointment and fast dispatch for confirmed stock. The result should be a clearly identified left intake order that matches the workshop’s agreed repair scope.
Related RunningRoo video
Inside a VVT Cam Phaser | Oil Passages & Locking Pin Explained | RunningRoo. General cam-phaser background only. The video is not verified as this Mercedes engine, position or aftermarket product; use the applicable Mercedes workshop instructions.
Related guide with a different scope
Mercedes-Benz M157/M278 Right Exhaust Camshaft Adjuster: OE Number and Position Checks. This covers a different component, engine or background topic. It is not an interchange claim. The specific buying decision in this article remains tied to its named product and verified vehicle requirement.
Sources and evidence boundaries
Daimler LI05.10-P-056435 version 9: start-up rattle. Manufacturer information supports only the limited context described above. Retail contents and application leads come from the linked seller offers and are not independent OEM certification. Use the applicable complete service information for the actual vehicle and repair.
Review the RunningRoo product and the corresponding eBay offer, or call 0425 890 125. Contact RunningRoo with VIN, engine code and OE details for friendly Australian-operated support. Ask about Melbourne local pickup in Blackburn by appointment and fast dispatch for confirmed available stock; confirm item-specific fulfilment before booking labour.