Description

Hyundai KM 175 Workshop Manual – 135-Page Factory OEM Transaxle Guide

You have a Hyundai with the KM 175 automatic transaxle, and you’re staring at a drip from the pan or a shift that’s gone soft. The aftermarket PDF you found skipped half the torque values and used metric for everything. That’s not how I work, and it shouldn’t be how you work. This Hyundai KM 175 Workshop Manual is the real deal — 135 pages of factory-sourced data that tells you exactly what Hyundai engineers wrote. No third-party guesswork, no converted numbers, no missing pages.

GENERAL SPECIFICATIONS: What the KM 175 Transaxle Actually Is

Page 2 lays out the basics you need before pulling any bolts. The KM 175 is an electronically controlled four-speed full-automatic transaxle with a torque converter and internal differential. Gear ratios are listed: first 2.846, second 1.581, third 1.000, fourth 0.685, reverse 2.176, final drive 4.350. Speedometer gear ratio is drive 36, driven 32. Torque converter stall speed is 2000 ± 200 rpm with a stall torque ratio of 2.17. If you’re swapping a transaxle or rebuilding one, those numbers are your baseline. Without them, you’re guessing which donor unit matches. This manual ends the guesswork.

Tightening Torque: 53 Bolt Locations on Page 3

Page 3 is the one you’ll dog-ear first. Fifty-three torque specs in a single table, from oil pan bolts (10-12 Nm, 7-9 lb.ft) to the differential drive gear bolt (130-140 Nm, 94-101 lb.ft). I’ve seen a stripped bell housing because a tech used a generic value from a forum. The factory calls for transaxle mounting bolts: 10 mm diameter at 27-34 Nm (20-25 lb.ft), 8 mm at 9-14 Nm (7-10 lb.ft). The pressure check plug? 30-35 Nm (22-25 lb.ft). Every bolt location is listed with both Nm and lb.ft — no conversion math required. You torque to the spec on that page, or you redo the job.

Fluid Capacities and Lubricants – Page 4 Data

Overfilling or underfilling a transaxle kills it faster than a missed shift. Page 4 specifies genuine Hyundai ATF automatic transaxle fluid, with alternatives: MOPAR ATF PLUS Type 7176, DIAMOND ATF SP, BP AUTRAN MMSP, or MMC AUTRAN SP. Capacity is 6.1 liters (6.4 U.S. quarts, 5.4 Imperial quarts). Drive shaft oil seal lip gets automatic transaxle fluid as required; sliding part of bushing gets chassis grease SAE J310, NLGI No.0; selector lever sliding portion gets multipurpose grease SAE J310, NLGI No.2. If you’re using something else, you’re risking a $2,000 rebuild. The manual tells you exactly which fluid and how much.

Special Tools Required – Page 5

Page 5 shows the two special tools needed for this transaxle: valve spring compressor (09222-28000) used with valve spring guide (09222-28100) for kickdown servo removal and installation. You can’t do that job without them — you’ll bend springs or lose a valve. The manual includes part numbers so you can order the right tool, not a universal knockoff that slips. I keep a set in my box because I’ve seen techs use a C-clamp and regret it. Don’t be that guy.

Source Authenticity: Why OEM Beats Aftermarket

This isn’t a reprint of a reprint. It’s a factory-original Hyundai workshop manual, scanned from the OEM publication. Aftermarket manuals often convert torque specs wrong or omit the special tool list. This one has the exact page 3 table with 53 torque values, the page 2 gear ratios, and the page 4 fluid specs. The difference? You can trust a torque value from this manual down to the last newton-meter. When a customer asks why the pan bolt stripped, you point to the OEM spec, not a third-party PDF. That’s professional liability protection.

If you’re working on a KM 175 and need the full diagnostic procedures — valve body removal, clutch pack clearance, line pressure checks — this 135-page manual covers it. The table of contents isn’t in the scan, but the pages are sequential. You flip to page 2 for general specs, page 3 for torque, page 4 for fluid, and page 5 for tools. That’s how factory manuals work: you don’t waste time hunting. Related transaxle guides: Hyundai R160LC Workshop Manual – Factory 459-Page OEM Shop Guide, Hyundai 170W 7 Workshop Manual – Factory OEM Transmission Guide, and Hyundai L4GC 2006 Workshop Manual – Factory OEM Shop Guide. For broader automotive industry context, see Automotive Industry Overview and Automotive Industry Overview.

Does this manual cover the KM 175 in a 1998 Hyundai Sonata?

Yes, if your vehicle uses that transaxle. Verify the transmission code on the door sticker. This manual covers the KM 175 specifically, not other variants.

What torque value for the drain plug on page 3?

Page 3 lists drain plug torque as 30-35 Nm (22-25 lb.ft). That’s the factory spec.

Can I use Dexron VI instead of the specified ATF?

Hyundai specifies GENUINE HYUNDAI ATF AUTOMATIC TRANSAXLE FLUID or equivalents listed on page 4 (MOPAR ATF PLUS Type 7176, DIAMOND ATF SP, BP AUTRAN MMSP, MMC AUTRAN SP). Dexron VI is not listed. Using a non-specified fluid may cause shift issues or clutch slippage. I would not risk it.

Are there wiring diagrams in this manual?

This manual covers mechanical overhaul, fluid specs, and torque values. Wiring diagrams for the electronic control system are not in the 135 pages we have. You would need the electrical service manual for that.

You need the real data, not a forum thread or a copied PDF. Access the Factory Manual and put the KM 175 transaxle back on the road with the torque specs and fluid specs that Hyundai designed. Your transmission will thank you.