For an older Mercedes A-Class or Vaneo, choosing a timing chain kit starts with identifying the engine beneath the badge. An A160 description is useful, but the full engine designation and vehicle information are more useful. The RunningRoo M166 package discussed here includes gears as well as the chain, tensioner and guides. Understanding that scope helps a workshop decide whether it matches the repair being proposed.
The RunningRoo M166 kit with gears and its matching RunningRoo eBay listing were both checked as available on 14 October 2026. This is an Australian buying guide, not an installation procedure. Call 0425 890 125 with your VIN, engine code and OE references for friendly support. RunningRoo is Australian-operated, with Melbourne local pickup in Blackburn by appointment and fast dispatch options to confirm when ordering.
Why M166 identification belongs at the top of the enquiry
Mercedes-Benz’s official archive identifies the 1997–2001 A160 W168 example as type 168.033, with engine 166.960. The archive describes a 1,598 cc petrol four-cylinder, one overhead camshaft, two valves per cylinder and a single roller-chain camshaft drive. Those specifications establish a useful reference example; they do not prove that one aftermarket package fits every A-Class bearing the same badge. Mercedes-Benz A160 archive.
Use that example to improve the quality of your enquiry. Instead of asking only for “an A160 chain”, supply the vehicle type, engine designation and build date. If you own a Vaneo, include that body designation rather than describing it simply as an A-Class engine. If the vehicle has an engine replacement history, disclose it so the parts check can address the installed unit.
The M166 focus also keeps this article separate from later M266 petrol engines and OM-series diesel engines. A year range or a similar-looking chain photograph is not sufficient grounds to substitute between them. Ask for the exact fitment decision in writing, especially when different catalogues describe the same vehicle differently or a previous repair has changed the original configuration.
What the gear-inclusive package actually lists
The product’s written description gives a six-component purchasing outline: one chain, one cam gear, one crank gear, one tensioner and two guides. It also describes the chain as 06BH-1 with 108 links. These are seller-listed package details, not a new manufacturer specification issued by this article. Have RunningRoo confirm the current supplied version against the workshop’s required references.
| Package line | Seller-listed quantity | Ordering check |
|---|---|---|
| Timing chain | 1 | Confirm chain reference and supplied configuration |
| Cam gear | 1 | Match the required camshaft-drive reference |
| Crank gear | 1 | Confirm the correct crankshaft-drive component |
| Tensioner | 1 | Check the installed engine variant and replacement reference |
| Guides | 2 | Identify both required positions in the parts drawing |
| Seals, bolts and service fluids | Not established by this list | Ask the installer to list any separately required materials |
A six-piece description is not a promise that the parcel contains every item needed for an engine repair. It tells you which principal components the seller names. The installer still needs to determine the necessary service materials and decide what other inspected components will be retained or replaced. Keep those decisions separate from the seller’s package count.
Photographs help communicate shape and arrangement, but do not use an editorial cover as a packing list. The catalogue photograph is a better starting point, and a written contents confirmation is better still. If the supplied guide design or gear marking differs from a picture, ask for an explanation before installation rather than deciding that visual similarity is close enough.
A gear-inclusive kit is a scope choice
A buyer may find a smaller chain-and-guide package and assume the larger kit is simply an upgraded version. A more useful comparison asks which components the workshop has actually inspected and approved for replacement. The word “with gears” changes the shopping list. It does not by itself establish that every engine needs new gears, or that the package solves every source of noise.
Ask the technician to show which parts are included in the recommended repair and why. If the estimate calls for cam and crank gears, make sure the chosen listing includes the correct references for those positions. If gears are being retained, ask how that decision was reached and whether a different package better matches the approved work. The aim is an agreed scope, not the largest possible box.
When comparing estimates, keep the component descriptions consistent. One quote may list a timing set as a single line; another may list six separate items. Ask each workshop to identify inclusions rather than concluding that the longer estimate contains more actual work. This is particularly helpful when an owner is sourcing parts and the installer is quoting labour separately.
Distinguish an observation from a diagnosis
A recording of a cold start can be useful background for a technician, but it does not prove a chain fault. Describe the circumstances in ordinary language: when the noise occurs, how long it is heard, whether the engine was cold or warm, and what work was recently completed. Avoid translating every rattle into the name of the part you expect to buy.
Ask for a diagnostic report that separates the owner’s complaint, the workshop’s observations and the proposed remedy. If the technician recommends further inspection before selecting parts, ask which decision that inspection will resolve. A clear report can explain why a gear-inclusive kit is appropriate or why the original enquiry should move toward another component entirely.
Manufacturer service information should determine the inspection and repair procedure for the exact engine. This article deliberately does not publish a universal chain-wear limit, torque value, timing mark sequence or tool substitute. Those details require the current applicable workshop instructions. A purchasing guide is most useful when it helps you obtain the right evidence, not when it supplies a guessed repair shortcut.
Gather a small but complete vehicle file
Prepare the full VIN, a readable engine-code photograph if available, the build date and the registration details used by your workshop. Add the relevant OE numbers and explain where they came from. A number taken from a manufacturer catalogue, a marking on an old component and a seller’s stock code are different kinds of information; label them accordingly.
Include previous repair paperwork if it identifies an engine replacement or timing work. You do not need to send unrelated personal documents. The useful part is the technical identification and the work history that may affect the order. If an invoice is ambiguous, ask the workshop to clarify the relevant line rather than guessing that a broad description confirms a specific component.
For a Vaneo enquiry, make the vehicle identity explicit in the first sentence. For a W168 enquiry, include the precise model and engine suffix. A concise, well-labelled request makes it easier for RunningRoo to compare the proposed kit with the vehicle and reduces the chance that a conversation switches between two different catalogue entries without anyone noticing.
Buying from RunningRoo in Australia
Use the M166 product page to review the current description, then compare the matching eBay item if that is your preferred ordering channel. Check the current price and delivery terms on the channel you choose. A remembered price or a saved image from a previous enquiry is not a reliable quotation for a later order.
For a workshop booking, confirm availability before setting a firm installation date. RunningRoo can provide friendly local support on 0425 890 125. Ask about fast dispatch with the destination postcode, or arrange Melbourne pickup in Blackburn by appointment. Make sure the person collecting has the correct order reference, especially if a workshop or family member is collecting on your behalf.
Australian-operated support is useful when a parts question needs clarification rather than a simple checkout. Send the technician’s required component list and ask RunningRoo to identify what the package covers. Keep the reply with the order confirmation so that the installer sees the same information the buyer used to approve the purchase.
What the workshop estimate should make clear
Ask the installer to distinguish diagnosis from replacement labour and list any service materials separately. The estimate should state whether it is final or subject to inspection after access. If additional work may be recommended, agree on how the workshop will contact you and what evidence will support the revised recommendation before the vehicle is left there.
A useful estimate also identifies who supplies the parts. If the owner supplies the kit, ask the workshop about its acceptance process and labour terms. If the workshop supplies everything, ask which package it intends to use and how the fitment was established. Neither arrangement removes the need for correct engine identification and a documented component match.
Do not import a labour time from another engine or another generation of A-Class. Ask the workshop to quote for the actual vehicle and planned scope. The same principle applies to fluids, seals and fasteners: their requirements belong to the applicable repair information and should be named by the installer rather than filled in from a generic internet checklist.
Inspect the delivery before the repair starts
Retain the parcel label and order confirmation. Check the package for damage, count the named parts and compare them with the agreed list. Keep replacement components separate from the removed parts and avoid discarding packaging until the installer accepts the delivery. A clear receiving check can resolve a mismatch while everything is still identifiable.
If a marking is different, photograph it alongside the order reference and ask for confirmation. Do not grind, modify or partially install a component simply to see whether it can be made to fit. The correct response to uncertainty is to resolve the part relationship through the supplier and workshop. Record the answer so it can be referred to later.
After completion, retain the final invoice and the workshop’s repair notes. Ask what maintenance instructions apply to the vehicle and whether a follow-up inspection is recommended. These records are useful for future servicing and for any later question about what was fitted. They should identify the actual work performed, not merely repeat the title of the kit purchased.
Related RunningRoo learning material
The RunningRoo timing-system video provides general educational context for owners discussing chain-drive parts. Use it to become familiar with terminology before speaking with the workshop. It does not demonstrate an approved M166 installation, establish a timing setting or prove that this package is suitable for a particular VIN. The vehicle-specific Mercedes procedure remains essential.
Frequently asked questions
Does the M166 kit fit every W168 A-Class?
Do not assume that. W168 is useful vehicle information, but the installed engine and required OE references must also match. Provide the VIN, engine code and build date, and ask RunningRoo to confirm the proposed package. A petrol-engine kit should not be selected for a diesel simply because the body generation is shared.
Are cam and crank gears included?
The written listing names one cam gear and one crank gear, alongside the chain, tensioner and two guides. Confirm the current package before ordering. Ask the workshop to approve the references for both gears; the presence of two gears in a photograph is not enough to establish that their mounting and application are correct.
Is a chain-link count enough to confirm fitment?
No. It is one package characteristic, not a complete compatibility decision. Engine identity, part references and the required component arrangement must agree. A chain with a similar count or appearance should not be substituted based only on that detail. Send the complete information rather than asking the supplier to decide from one measurement.
Should I replace the kit because the vehicle is old?
Age alone is not a diagnosis. Ask a qualified workshop to assess the vehicle and explain whether timing-drive work is justified. This article does not set a replacement interval for all M166 engines. Use the vehicle’s maintenance information and the results of professional inspection when deciding on a repair.
Can RunningRoo supply installation instructions?
Ask about any instructions supplied with the actual package, but the installer must still use the correct manufacturer service information. A sales page is not a complete workshop manual. Confirm access to the appropriate procedure and tooling before the job, rather than expecting a buying guide to provide engine timing instructions.
How do I organise a Melbourne order?
Review the RunningRoo M166 gear-inclusive kit or the corresponding eBay listing, then call 0425 890 125. Have your vehicle file and workshop list ready. Confirm stock, contents and the chosen delivery method together. Melbourne local pickup is available by appointment in Blackburn, and dispatch timing should be checked for your order and postcode.